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All the ideas for 'Mahaprajnaparamitashastra', 'Sameness and Substance Renewed' and 'The Possibility of Metaphysics'

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107 ideas

1. Philosophy / E. Nature of Metaphysics / 1. Nature of Metaphysics
Metaphysics is the mapping of possibilities [Lowe, by Mumford]
     Full Idea: Metaphysics can be judged as the mapping of possibilities.
     From: report of E.J. Lowe (The Possibility of Metaphysics [1998], 1) by Stephen Mumford - Laws in Nature 2.2
Science needs metaphysics to weed out its presuppositions [Lowe, by Hofweber]
     Full Idea: Lowe argues that the sciences need metaphysics to discharge the assumptions that they simply made at the outset.
     From: report of E.J. Lowe (The Possibility of Metaphysics [1998]) by Thomas Hofweber - Ambitious, yet modest, Metaphysics 1.2
     A reaction: Hofweber doesn't buy this, and neither do I. I don't think science 'needs' metaphysics (or barely needs it), but I do think metaphysics needs a fair degree of science. It is high-level abstraction based on the facts.
1. Philosophy / E. Nature of Metaphysics / 5. Metaphysics beyond Science
Only metaphysics can decide whether identity survives through change [Lowe]
     Full Idea: Only metaphysics can vindicate a judgement that a caterpillar survives to become a butterfly, but a pig does not survive to become pork, or that water survives as ice, but that paper does not survive as ash.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 8.2)
     A reaction: The works of Lowe, and other modern heroes, have shown that these real questions can be pursued intensively into areas where no scientist, or even theologian, would dare to tread.
Metaphysics tells us what there could be, rather than what there is [Lowe]
     Full Idea: I do not claim that metaphysics on its own can, in general, tell us what there is. Rather - to a first approximation - I hold that metaphysics by itself only tells us what there could be.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 1.3)
     A reaction: If there is going to be a modern defence of metaphysics, in an age dominated by empirical science, this sounds pretty good to me. Presumably it also says what there couldn't be. The challenge is to offer authority for any claims made.
1. Philosophy / F. Analytic Philosophy / 4. Conceptual Analysis
We learn a concept's relations by using it, without reducing it to anything [Wiggins]
     Full Idea: We can achieve a lot by elucidations that put a concept to use without attempting to reduce it but, in using the concept, exhibit its connexions with other concepts that are established.
     From: David Wiggins (Sameness and Substance Renewed [2001], Pr.3)
     A reaction: This seems to be the best line of defence for analytic philosophy, given the much-cited observation that no one has successful reduced any concept by pure analysis.
2. Reason / D. Definition / 12. Paraphrase
How can a theory of meaning show the ontological commitments of two paraphrases of one idea? [Lowe]
     Full Idea: Nothing purely within the theory of meaning is capable of telling us which of two sentences which are paraphrases of one another more accurately reflects the ontological commitments of those who utter them.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 2.3)
     A reaction: This is an attack on the semantic approach to ontology, associated with Quine. Cf. Idea 7923. I have always had an aversion to that approach, and received opinion is beginning to agree. "There are more things in heaven and earth, Horatio..."
3. Truth / C. Correspondence Truth / 2. Correspondence to Facts
Maybe facts are just true propositions [Lowe]
     Full Idea: If facts are 'proposition-like' or 'thinkable' (we speak of 'knowing' or 'understanding' facts) might they not simply be true propositions?
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 11.2)
     A reaction: They certainly can't be if we are going to use facts as what makes propositions true. The proposal would be empty without out some other account of truth (probably a dubious one). Facts are truth-makers?
3. Truth / C. Correspondence Truth / 3. Correspondence Truth critique
One-to-one correspondence would need countable, individuable items [Lowe]
     Full Idea: Where there is one-to-one correspondence there must certainly be countable, and therefore individuable items of some kind.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 11.6)
     A reaction: Lowe is criticising precise notions of 'a fact'. We can respond by relaxing the notion of 'one-to-one', if critics are going to be fussy about exactly what the items are. "There is a huge wave coming" doesn't need a precise notion of a wave to be true.
4. Formal Logic / F. Set Theory ST / 1. Set Theory
A set is a 'number of things', not a 'collection', because nothing actually collects the members [Lowe]
     Full Idea: A set is 'a number of things', not a 'collection'. Nothing literally 'collects' the members of a set, such as the set of planets of the sun, unless it be a Fregean 'concept' under which they fall.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.6)
     A reaction: I'm tempted to say that the sun has collected a set of planets (they're the ones that rotate around it). Why can't we have natural sets, which have been collected by nature? A question of the intension, as well as the extension....
4. Formal Logic / F. Set Theory ST / 3. Types of Set / b. Empty (Null) Set
I don't believe in the empty set, because (lacking members) it lacks identity-conditions [Lowe]
     Full Idea: It is not clear to me that the empty set has well-defined identity-conditions. A set has these only to the extent that its members do - but the empty set has none.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 12.3 n8)
     A reaction: The empty set is widely used by those who base their metaphysics of maths on sets. It defines zero, and hence is the starting poing for Peano's Postulates (Idea 5897). It might not have identity in itself, but you know where you have arrived after 2 - 2.
5. Theory of Logic / F. Referring in Logic / 3. Property (λ-) Abstraction
(λx)[Man x] means 'the property x has iff x is a man'. [Wiggins]
     Full Idea: The Lambda Abstraction Operator: We can write (λx)[Man x], which may be read as 'the property that any x has just if x is a man'.
     From: David Wiggins (Sameness and Substance Renewed [2001], 4.2)
     A reaction: This technical device seems to be a commonplace in modern metaphysical discussions. I'm assuming it can be used to discuss properties without venturing into second-order logic. Presumably we could call the property here 'humanity'.
5. Theory of Logic / G. Quantification / 3. Objectual Quantification
It is better if the existential quantifier refers to 'something', rather than a 'thing' which needs individuation [Lowe]
     Full Idea: If we take the existential quantifier to mean 'there is at least one thing that' then its value must qualify as one thing, individuable in principle. ...So I propose to read it as 'there is something that', which implies nothing about individuability.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 11)
     A reaction: All sorts of doubts about the existential quantifier seem to be creeping in nowadays (e.g. Ideas 6067, 6069, 8250). Personally I am drawn to the sound of 'free logic', Idea 8250, which drops existential claims. This would reduce metaphysical confusion.
6. Mathematics / B. Foundations for Mathematics / 5. Definitions of Number / c. Fregean numbers
Numbers are universals, being sets whose instances are sets of appropriate cardinality [Lowe]
     Full Idea: My view is that numbers are universals, beings kinds of sets (that is, kinds whose particular instances are individual sets of appropriate cardinality).
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10)
     A reaction: [That is, 12 is the set of all sets which have 12 members] This would mean, I take it, that if the number of objects in existence was reduced to 11, 12 would cease to exist, which sounds wrong. Or are we allowed imagined instances?
6. Mathematics / B. Foundations for Mathematics / 5. Definitions of Number / d. Hume's Principle
Simple counting is more basic than spotting that one-to-one correlation makes sets equinumerous [Lowe]
     Full Idea: That one-to-one correlated sets of objects are equinumerous is a more sophisticated achievement than the simple ability to count sets of objects.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 2.9)
     A reaction: This is an objection to Frege's way of defining numbers, in terms of equinumerous sets. I take pattern-recognition to be the foundation of number, and so spotting a pattern would have to precede spotting that two patterns were identical.
Fs and Gs are identical in number if they one-to-one correlate with one another [Lowe]
     Full Idea: What is now known as Hume's Principle says the number of Fs is identical with the number of Gs if and only if the Fs and the Gs are one-to-one correlated with one another.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.3)
     A reaction: This seems popular as a tool in attempts to get the concept of number off the ground. Although correlations don't seem to require numbers ('find yourself a partner'), at some point you have to count the correlations. Sets come first, to identify the Fs.
6. Mathematics / C. Sources of Mathematics / 1. Mathematical Platonism / a. For mathematical platonism
Sets are instances of numbers (rather than 'collections'); numbers explain sets, not vice versa [Lowe]
     Full Idea: I favour an account of sets which sees them as being instances of numbers, thereby avoiding the unhelpful metaphor which speaks of a set as being a 'collection' of things. This reverses the normal view, which explains numbers in terms of sets.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10)
     A reaction: Cf. Idea 8297. Either a set is basic, or a number is. We might graft onto Lowe's view an account of numbers in terms of patterns, which would give an empirical basis to the picture, and give us numbers which could be used to explain sets.
If 2 is a particular, then adding particulars to themselves does nothing, and 2+2=2 [Lowe]
     Full Idea: If 2 is a particular, 'adding' it to itself can, it would seem, only leave us with 2, not another number. (If 'Socrates + Socrates' denotes anything, it most plausibly just denotes Socrates).
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.7)
     A reaction: This suggest Kant's claim that arithmetical sums are synthetic (Idea 5558). It is a nice question why, when you put two 2s together, they come up with something new. Addition is movement. Among patterns, or along abstract sequences.
6. Mathematics / C. Sources of Mathematics / 1. Mathematical Platonism / b. Against mathematical platonism
Does the existence of numbers matter, in the way space, time and persons do? [Lowe]
     Full Idea: Does it really matter whether the numbers actually exist - in anything like the way in which it matters that space and time or persons actually exist?
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.6)
     A reaction: Nice question! It might matter a lot. I take the question of numbers to be a key test case, popular with philosophers because they are the simplest and commonest candidates for abstract existence. The ontological status of values is the real issue.
7. Existence / A. Nature of Existence / 1. Nature of Existence
All possible worlds contain abstracta (e.g. numbers), which means they contain concrete objects [Lowe]
     Full Idea: One could argue that some abstract objects exist in all possible worlds (e.g. natural numbers) and that abstract objects always depend for their existence upon concrete objects, and conclude that some concrete objects exist in all possible worlds.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 12.1)
     A reaction: We're all in the dark on this one, but I quite like this argument. I can't conceive of a reality that lacks natural numbers, and the truths that accompany them, and I personally think that numbers arise from the patterns of physical reality.
7. Existence / A. Nature of Existence / 6. Criterion for Existence
What exists can't depend on our conceptual scheme, and using all conceptual schemes is too liberal [Sider on Wiggins]
     Full Idea: It would be incredible if what there is, rather than what we select for attention, depends on human activity and our conceptual scheme. One might expand to possible sortal concepts, rather than our language, but that amounts to four-dimensionalism.
     From: comment on David Wiggins (Sameness and Substance Renewed [2001]) by Theodore Sider - Four Dimensionalism 5.3
     A reaction: [compression of a nice anti-Wiggins paragraph] He suggests that Wiggins is seeking an intermediate course (between narrow chauvinism about concepts, and excessive liberalism) in a discussion of natural kinds versus artifacts.
Perhaps possession of causal power is the hallmark of existence (and a reason to deny the void) [Lowe]
     Full Idea: For some metaphysicians, possession of causal power is the very hallmark of real existence (and is one reason, for instance, why some have denied the existence of the void or absolute space).
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.2)
     A reaction: You could try saying that space has the power of making movement possible. The 'hallmark' of something doesn't define what it is. Existence without causal power seems logically possible and imaginable, but unlikely. Epiphenomena have this problem.
7. Existence / B. Change in Existence / 1. Nature of Change
Heraclitus says change is new creation, and Spinoza that it is just phases of the one substance [Lowe]
     Full Idea: The extreme views on change are the Heraclitan view - that every change brings into existence an entirely new entity, and destroys what existed before, and the Spinozan view - that all changes are phase changes within a single substance.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 8.2)
     A reaction: The views in between are that bundles of properties shift their contents, or that many substances undergo changes in their properties. The unification of physics might be aiming to vindicate Spinoza. Temporal parts (Lewis) are close to Heraclitus.
7. Existence / B. Change in Existence / 4. Events / a. Nature of events
Events are changes or non-changes in properties and relations of persisting objects [Lowe]
     Full Idea: My own broadly Aristotelian view is that events are changes (and unchanges) in the properties and relations of persisting objects.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 4.4)
     A reaction: This needs an account of what it is that persists, and the philosophers' (but not physicists') concept of 'substance' fills this role. It is rather hard to give identity-conditions for an event if it is an 'unchange'. How would you count such events?
7. Existence / B. Change in Existence / 4. Events / b. Events as primitive
Events are ontologically indispensable for singular causal explanations [Lowe]
     Full Idea: We must include events in our ontology because they figure indispensably in singular causal explanations.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.5)
     A reaction: Hm. Spirits figure indispensably in supernatural explanations. It would be quite a task to prove that events really are indispensable to causal explanations. Why would nomological or counterfactual causal explanations not have the same need?
7. Existence / D. Theories of Reality / 8. Facts / a. Facts
Are facts wholly abstract, or can they contain some concrete constituents? [Lowe]
     Full Idea: Philosophers who invoke facts are divided over whether facts are wholly abstract entities or are complexes capable of containing concrete objects as constituents.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 11.2)
     A reaction: If externalism about concepts was true (see Thought|Content|Broad Content), this would support the second (more concrete) view of facts. The correspondence theory of truth would love to plug belief into the concrete world. Me too.
Facts cannot be wholly abstract if they enter into causal relations [Lowe]
     Full Idea: There is a difficulty for any view of facts which sees them as being wholly abstract entities, and yet also being causal relata; for it seems that only concrete entities, existing in time and space, can enter into causal relations.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 11.3)
     A reaction: There seems a lot of ambiguity in the air here, between epistemology and ontology (surprise!). I take causation to be a physical activity in the concrete world. Our understanding of it is expressed with abstractions. 'Fact' seems to have two meanings.
The problem with the structured complex view of facts is what binds the constituents [Lowe]
     Full Idea: The most notorious problem besetting the view that facts are structured complexes of constituents is the question of what it is that binds the supposed constituents into the fact. The ordered triple doesn't make Mars red.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 11.5)
     A reaction: Lowe denies that facts are complex entities on this basis. You only have the problem if Mars and its redness are two 'things'. If redness is intrinsically a dependent item, we may escape. I wish they wouldn't use colours as examples. See Idea 5456.
It is whimsical to try to count facts - how many facts did I learn before breakfast? [Lowe]
     Full Idea: Although 'fact' is grammatically a count noun, it strikes us as being at best whimsical to talk about enumerating facts - to talk, for instance, about how many facts I learned today before breakfast.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 12.4)
     A reaction: I always liked the question 'how many facts are there in this room?' One might make a serious attempt to decide how many facts I learned before breakfast, and reach a reasonable approximation, especially if one didn't open the newspaper.
7. Existence / D. Theories of Reality / 8. Facts / e. Facts rejected
Facts are needed for truth-making and causation, but they seem to lack identity criteria [Lowe]
     Full Idea: Facts seem to be indispensable as truth-makers and perhaps as causal relata, ..but if we must only include in our ontology things for which we can state a criterion of identity (Quine), ..we seem to be faced with a dilemma.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 11)
     A reaction: Lowe proposes to relax the identification requirement (see Idea 8312). This seems a good strategy. An awful lot of strange philosophy arises from insisting on strict conditions for our understanding, and then finding everywhere failure to achieve it.
7. Existence / D. Theories of Reality / 11. Ontological Commitment / a. Ontological commitment
Two of the main rivals for the foundations of ontology are substances, and facts or states-of-affairs [Lowe]
     Full Idea: One of the chief rivals to my own substance-based ontology is the view that holds facts or states of affairs to be the building-blocks of the world.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], Pref)
     A reaction: I think I side with Lowe, even though I am uneasy about the gap between the philosopher's 'substance' and the basic entities of physics. Facts are hard to individuate, and seem to be composed of more basic elements.
Some abstractions exist despite lacking causal powers, because explanation needs them [Lowe]
     Full Idea: Some abstract objects, notably certain universals, need to be invoked for explanatory purposes, even if it cannot be said that they themselves possess causal powers or enter into causal relations.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.2)
     A reaction: I am unconvinced that an entity with no causal powers could be any kind of explanation, given that, by definition, it can't do anything. You would have to think that the world of pure reason functioned without the aid of causal powers.
7. Existence / E. Categories / 1. Categories
Ontological categories are not natural kinds: the latter can only be distinguished using the former [Lowe]
     Full Idea: Ontological categories should not be confused with natural kinds: for natural kinds can only be differentiated in a principled way relative to an accepted framework of ontological categories.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 8.2)
     A reaction: I presume that the natural kinds are likely to be contingent facts about the actual world (though they may entail necessary laws), whereas I like to think, unfashionably, that categories aim at deconstructing the mind of God (roughly).
7. Existence / E. Categories / 3. Proposed Categories
The top division of categories is either abstract/concrete, or universal/particular, or necessary/contingent [Lowe]
     Full Idea: Some metaphysicians take the highest division to be between abstract and concrete entities, others take it to be between universals and particulars (my own preference, though it is not crucial), and others between necessary and contingent entities.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 8.3)
     A reaction: The first division may be blurred, and I am doubtful about universals, so I favour the third. Intuition tells me that there is nothing more basic than the distinction between what is true in all worlds and what is only true in some. The former is bedrock.
Lowe divides things into universals and particulars, then kinds and properties, and abstract/concrete [Lowe, by Westerhoff]
     Full Idea: Lowe's Ontological Categories: ENTITIES - {Universals - [Kinds - (Non-natural)(Natural)] [Properties, Relations]} {Particulars - [Abstracta - (Sets)(others)] [Concreta - (Objects)(Non-Objects)]} etc
     From: report of E.J. Lowe (The Possibility of Metaphysics [1998], p.181) by Jan Westerhoff - Ontological Categories §01
     A reaction: [my linear representation of a tree diagram; bracket-styles show levels] Lowe's levels below these divide according to whether things are 'substances' or not. I've heard Kit Fine tease Lowe for being too simplistic about ontology.
8. Modes of Existence / B. Properties / 10. Properties as Predicates
Is 'the Thames is broad in London' relational, or adverbial, or segmental? [Lowe]
     Full Idea: "The Thames is broad in London" might be taken as 'The Thames is broad-in-London', or as 'The Thames is-in-London broad', or as 'The Thames-in-London is broad'. I would urge the superiority of the second one, as an analysis of the normal meaning.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 5.8)
     A reaction: He uses the example to attack the perdurance view of objects (i.e. the third analysis). I think I agree with Lowe, but I'm not sure, and I just love the example. Read the second as 'The Thames is (in London) broad'? 'Is' of existence, or predication?
8. Modes of Existence / B. Properties / 13. Tropes / a. Nature of tropes
I prefer 'modes' to 'tropes', because it emphasises their dependence [Lowe]
     Full Idea: Some philosophers call particularised properties of objects 'tropes', but I prefer the older term 'mode' (or 'individual accident'), because this term rightly has the implication that such entities are existentially dependent ones, depending on objects.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 8.3)
     A reaction: A nice illustration of the fact that philosophical terminology is not as metaphysically innocent as it sometimes pretends to be. I agree with Lowe.
8. Modes of Existence / B. Properties / 13. Tropes / b. Critique of tropes
Tropes cannot have clear identity-conditions, so they are not objects [Lowe]
     Full Idea: I do not believe that tropes or modes can have well-defined or fully determinate identity-conditions, and hence do not believe that they should be thought of as 'objects'.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 8.3)
     A reaction: Lowe's account would still allow them to be 'entities'. Any proposal that they have an existence of their own, apart from the objects on which they depend, sounds very misguided. We won't make progress if we don't identify the real properties.
How can tropes depend on objects for their identity, if objects are just bundles of tropes? [Lowe]
     Full Idea: It seems that tropes are identity-dependent upon their possessors, but it is difficult to square this claim with the thesis that the possessors of tropes are themselves just bundles of tropes.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 9.8)
     A reaction: This circularity in all attempts to individuate tropes is Lowe's main reason for rejecting them. It does seem that the sphericity of a ball must be either identified against other (universal) sphericities, or by the sphere that has the property.
Why cannot a trope float off and join another bundle? [Lowe]
     Full Idea: Why cannot a certain trope 'float free' of the trope-bundle to which it belongs and migrate to another bundle?
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 9.8)
     A reaction: Tropes are said to be dependent on their possessors, but at the same time to exist as particulars. Lowe's suggestion is that you can't have it both ways. A particular sphericity with no sphere does not even make sense.
Does a ball snug in plaster have one trope, or two which coincide? [Lowe]
     Full Idea: If a round ball fits snugly into a round piece of plaster, do they contain the same roundness trope, or do they contain numerically distinct but exactly similar and coinciding roundness tropes?
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 9.8)
     A reaction: A microscope would distinguish them, and they are made of different types of matter. Is a hole in a piece of paper a circular cut and a circular area of space? Neither example looks good for tropes.
8. Modes of Existence / D. Universals / 1. Universals
Sortal terms for universals involve a substance, whereas adjectival terms do not [Lowe]
     Full Idea: I want to distinguish 'substantial' universals from 'non-substantial' universals. The former are denoted by sortal terms, such as 'statue' and 'tiger', whereas the latter are denoted by adjectival terms, such as 'red' and 'spherical'.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 9.3)
     A reaction: It is an interesting question whether or not (assuming you are committed to universals) a universal necessarily implies an associated substance. If a property is a power, it must be a power of something. Nominalists will deny his distinction.
8. Modes of Existence / D. Universals / 2. Need for Universals
Real universals are needed to explain laws of nature [Lowe]
     Full Idea: I base my case for realism about universals on the need to explain the status of natural laws.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 9.6)
     A reaction: I need black magic to explain why my watch has disappeared. The key question, then, would be what we understand by the 'laws of nature'. I am inclined to think that scientific essentialism (qv) can build laws out of natural kinds. Idea 6614.
8. Modes of Existence / D. Universals / 4. Uninstantiated Universals
Particulars are instantiations, and universals are instantiables [Lowe]
     Full Idea: A particular is something (not necessarily an object) which instantiates but is not itself instantiated. Universals, on the other hand, necessarily have instances (or, at least, are instantiable).
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.4)
     A reaction: This is Lowe's proposal for distinction. It at least establishes the direction of dependency, but I find the notion of 'instantiation' to be as obscure and problematic as the Platonic notion of 'partaking' (see in Ontology|Universals|Platonic Forms).
9. Objects / A. Existence of Objects / 1. Physical Objects
To be an object at all requires identity-conditions [Lowe]
     Full Idea: The only metaphysically defensible notion of an object is precisely that of an entity which possesses determinate identity-conditions.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 1.3)
     A reaction: I think he includes abstract objects in this. I suspect this view of muddling epistemology and ontology. Or overemphasising our conventions, rather than reality.
Perhaps concrete objects are entities which are in space-time and subject to causality [Lowe]
     Full Idea: An obvious suggestion is that concrete objects are denizens of space-time, and hence subject to causality, though Hale objects that languages are plausibly abstract and yet undergo change and so presumably exist in time.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 2.10)
     A reaction: The identity-conditions for a language are pretty loose. Choosing a counterexample from the mental life of human beings begs a billion questions. I can't think of a problem case beyond the world of human culture.
Our commitment to the existence of objects should depend on their explanatory value [Lowe]
     Full Idea: Whether objects of a given kind should be thought actually to exist should, in general, be taken to turn on considerations of whether an inclusion of such objects in one's ontology has explanatory value.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 2.3)
     A reaction: Blatantly fictional objects, such as fairies, might have wonderful explanatory value (they place dewdrops on flowers). Our ontological commitments cannot be decided one at a time, because consistency of the whole picture is the key value.
Objects are entities with full identity-conditions, but there are entities other than objects [Lowe]
     Full Idea: I distinguish objects as those entities - whether abstract or concrete, universal or particular - which possess fully determinate identity-conditions, but there are, or may be, entities other than objects.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 7)
     A reaction: A wave on the sea is a candidate for being an entity but not an object. The distinction is probably not quite common usage, but it strikes as one which philosophers should universally adopt. Lots of entities, and some of them are objects.
9. Objects / A. Existence of Objects / 3. Objects in Thought
An object is an entity which has identity-conditions [Lowe]
     Full Idea: To be an object is simply to be an entity possessing determinate identity-conditions.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 2.3)
     A reaction: This is a nice clear-cut claim, which sounds good, except that there may be a blurring of ontology and epistemology. Presumably the conditions are for the concept, not for an actual act of identification. Maybe we are too stupid to conceive them.
9. Objects / A. Existence of Objects / 5. Individuation / a. Individuation
We can accept criteria of distinctness and persistence, without making the counterfactual claims [Mackie,P on Wiggins]
     Full Idea: We might agree with Wiggins's theory of individuation, but reject his thesis that a thing's principle of individuation (of distinctness and persistence) must be preserved in all counterfactual situations.
     From: comment on David Wiggins (Sameness and Substance Renewed [2001]) by Penelope Mackie - How Things Might Have Been 8.7
     A reaction: I'm not even convinced that initial individuation consists of falling under a sortal, and I prefer to discuss the powers of the thing, rather than counterfactual facts about behaviour.
Activity individuates natural things, functions do artefacts, and intentions do artworks [Wiggins]
     Full Idea: What a principle of activity does completely for a natural thing, and the function does imperfectly for an ordinary artefact, the artist's conception of his own making of the work must do for the painting.
     From: David Wiggins (Sameness and Substance Renewed [2001], 4.12)
     A reaction: This nicely sums up Wiggins on individuation, and he seems to effectively elide individuation with essence. I certainly feel uneasy that a work of art needs a quite separate account from other artefacts. Surely it is just that we are fussier about them?
Some things (such as electrons) can be countable, while lacking proper identity [Lowe]
     Full Idea: There can be determinate countability even where there is not determinate identity; it is not in dispute that there are two electrons in the shell of a neutral helium atom, even though the identity of electrons is not determinate.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 3.3)
     A reaction: If the electrons could merge like water drops, we would be unable to say when they became one object. You can roughly count waves on the sea, but when you seek an exact total, the identity problem intrudes and prevents precise counting.
9. Objects / A. Existence of Objects / 5. Individuation / b. Individuation by properties
Criteria of identity cannot individuate objects, because they are shared among different types [Lowe]
     Full Idea: Criteria of identity never unambiguously determine the kind of objects to which they apply, since many different types of objects can be governed by the same criteria. Cats and dogs share the criterion of identity for animals in general.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.3)
     A reaction: So how do you individuate the type of an object? You could identify 'the thing I dug up yesterday' without being able to individuate it. You can individuate 'the cleverest person in Britain' without being able to identify them.
9. Objects / A. Existence of Objects / 5. Individuation / c. Individuation by location
Diversity of two tigers is their difference in space-time; difference of matter is a consequence [Lowe]
     Full Idea: What really makes for the diversity of two tigers is their difference in space-time location, from which their difference in component matter at any time merely follows as a consequence.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 9.5)
     A reaction: I daresay this is how we manage to identify the diversity of a pair of tigers (epistemology), but is that what their diversity consists in (ontology)? That they employ different matter seems relevant. If you feed one, the other stays hungry (causation).
9. Objects / A. Existence of Objects / 5. Individuation / d. Individuation by haecceity
The idea of 'thisness' is better expressed with designation/predication and particular/universal [Wiggins]
     Full Idea: It is hard to think of anything true and significant that could not be said using the idea of thisness not better said while respectiving the distinctions designation/predication and particular/universal.
     From: David Wiggins (Sameness and Substance Renewed [2001], 4.7)
     A reaction: Politis calls 'thisness' the 'ultimate subject of predication', so it is covered in logic by the name for an object. But we need to understand objects, and not just refer to them, and I'm not sure that 'universals' advance our understanding.
9. Objects / A. Existence of Objects / 5. Individuation / e. Individuation by kind
A sortal essence is a thing's principle of individuation [Wiggins, by Mackie,P]
     Full Idea: Wiggins bases sortal essentialism on the notion that a thing's principle of individuation is essential to it.
     From: report of David Wiggins (Sameness and Substance Renewed [2001]) by Penelope Mackie - How Things Might Have Been 7.1
     A reaction: This idea has failed to make much impression on me. I seem to be the only person who doesn't understand the concept of 'individuation'. Please let me know exactly what it means. Type individuation is not individual individuation, I presume.
The evening star is the same planet but not the same star as the morning star, since it is not a star [Wiggins]
     Full Idea: The evening star is the same planet but not the same star as the morning star. For Venus is not a star.
     From: David Wiggins (Sameness and Substance Renewed [2001], 2.3)
     A reaction: This is a nice objection to the idea that identity is entirely a matter of falling under the same sortal category.
Wiggins's sortal essentialism rests on a thing's principle of individuation [Wiggins, by Mackie,P]
     Full Idea: Wiggins bases sortal essentialism on the notion that a thing's principle of individuation is essential to it.
     From: report of David Wiggins (Sameness and Substance Renewed [2001]) by Penelope Mackie - How Things Might Have Been 7.1
     A reaction: My problem with this is that individuation is a human activity, not an intrinsic feature of the entities in the external world. Entities presumably have a 'unity', but I'm not sure about a 'principle' that does that job, though Aristotle is sympathetic.
'Sortalism' says parts only compose a whole if it falls under a sort or kind [Wiggins, by Hossack]
     Full Idea: 'Sortalism' endorses the view that some things have parts, but denies that every collection of things composes something. Whenever there is a particular, there must be a sort or kind to which it belongs.
     From: report of David Wiggins (Sameness and Substance Renewed [2001]) by Keith Hossack - Plurals and Complexes 7
     A reaction: What is the status of 'the first of its kind'? This seems to say that a token only has identity if it has type-identity. This sounds wildly wrong to me. I've made a 'thing' for you, but I haven't decided what it is yet.
Identity a=b is only possible with some concept to give persistence and existence conditions [Wiggins, by Strawson,P]
     Full Idea: Wiggins says an identity a=b stands no chance of being true unless there is some concept f under which a falls and under which b falls, which 'determines identity, persistence and existence conditions for members of its extension'.
     From: report of David Wiggins (Sameness and Substance Renewed [2001]) by Peter F. Strawson - Review of 'Sameness and Substance' p.604
     A reaction: This is the first clear statement I have met of Wiggins's central idea, upon which his sortal essentialism is built. Strawson's exposition adds that each thing necessarily falls under the 'highest' appropriate sortal ('dog', rather than 'terrier').
A thing is necessarily its highest sortal kind, which entails an essential constitution [Wiggins, by Strawson,P]
     Full Idea: In Wiggins's theory, necessity carries over from the kind to constitution. If Toby is necessarily a dog and 'dog' is a natural kind term, then Toby necessarily has the constitution of a dog, the features of which make up the real essence of being a dog.
     From: report of David Wiggins (Sameness and Substance Renewed [2001]) by Peter F. Strawson - Review of 'Sameness and Substance' p.605
     A reaction: The essence will then presumably consist of all and only the characteristics which are shared by all dogs whatsoever. So how do you decide the borderline between wolf and dog? Why isn't a wolf a dog?
Many predicates are purely generic, or pure determiners, rather than sortals [Wiggins]
     Full Idea: There are countless predicates in English that have the appearance of sortal predicates but are purely generic (animal, machine, artefact), or are pure determinables for sortal determination (space-occupier, entity, substance).
     From: David Wiggins (Sameness and Substance Renewed [2001], 2.6)
     A reaction: This is preparing the ground for a specification of a sortal which defines something essential as being the hallmark of identity. It is never quite clear to me whether Wiggins's case rests on a nominal or a real essence.
The possibility of a property needs an essential sortal concept to conceive it [Wiggins]
     Full Idea: A thing could have a property only if its having the property could be conceived, and that requires some sortal concept which adequately answers the Aristotelian question what the thing is.
     From: David Wiggins (Sameness and Substance Renewed [2001], 4.5)
     A reaction: [Algebra omitted!] The core idea of Wiggins's theory. It seems at first glance to be a revival of Aristotelian essentialism, but his view of that seems to merely involve falling into a category. He treats sortal concepts as Aristotle's 'primary being'.
Individuation principles identify what kind it is; identity criteria distinguish items of the same kind [Lowe]
     Full Idea: A principle of individuation tells us what is to count as one instance of a given kind, such as one ship. A criterion of identity is what makes for the identity or diversity of items of a given kind, to distinguish this ship from that ship.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 9.5)
     A reaction: So individuation picks out type/qualitative identity, and identifying picks out token/numerical identity. This agrees with Idea 7926, but is a shift from the usage Lowe mentions in Idea 8290. Common usage makes the technical terms unclear.
9. Objects / B. Unity of Objects / 2. Substance / d. Substance defined
A 'substance' is an object which doesn't depend for existence on other objects [Lowe]
     Full Idea: A 'substance' might be defined to be an object which does not depend for its existence upon any other object (where dependency is defined in terms of necessity.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 1.3)
     A reaction: I'm inclined to leave out 'substance', which has too much historical baggage, and talk of minimal things having 'identity', and proper things having 'essence'.
9. Objects / B. Unity of Objects / 3. Unity Problems / d. Coincident objects
Objects can only coincide if they are of different kinds; trees can't coincide with other trees [Wiggins, by Sider]
     Full Idea: Wiggins says that coincidence is possible only between objects of different kinds. Trees and cats coincide with aggregates of matter, but never trees with trees or cats with cats.
     From: report of David Wiggins (Sameness and Substance Renewed [2001]) by Theodore Sider - Four Dimensionalism 5.3
     A reaction: At first glance this sounds quite plausible, but I think this commitment to the priority of kinds produces huge confusion, given that we only derive our notions of kinds from inductions derived from individuals. Language perpetuates old inductions.
9. Objects / B. Unity of Objects / 3. Unity Problems / e. Vague objects
Is the Pope's crown one crown, if it is made of many crowns? [Wiggins]
     Full Idea: The Pope's crown is made of crowns. There is no definite answer, when the Pope is wearing his crown, to the question 'how many crowns does he have on his head?'
     From: David Wiggins (Sameness and Substance Renewed [2001], 2.7)
     A reaction: A very nice example, in which the identity of the item seems clear enough, until you try to apply a sortal to it. I can't get excited about it, though, because calling it one 'crown' creates uncertainty, but calling it the 'Pope's crown' doesn't.
Boundaries are not crucial to mountains, so they are determinate without a determinate extent [Wiggins]
     Full Idea: It can be perfectly determinate which mountain x is without x's extent's being determinate. A mountain is not, after all, something essentially demarcated by its extent or boundary.
     From: David Wiggins (Sameness and Substance Renewed [2001], 6.5)
     A reaction: This endorses something I have always wanted to assert ('a vague boundary is still a boundary'), but with the interesting addition that one might think about vagueness in terms of what is essential to a thing. Hm....
9. Objects / C. Structure of Objects / 5. Composition of an Object
Identity is an atemporal relation, but composition is relative to times [Wiggins, by Sider]
     Full Idea: Wiggins points out that identity is an atemporal relation whereas composition, like parthood, holds only relative to times.
     From: report of David Wiggins (Sameness and Substance Renewed [2001]) by Theodore Sider - Four Dimensionalism 5.3
     A reaction: If David Cameron is identical to the Prime Minister, that doesn't seem to be atemporal. If x=7 in this problem, I can change x to something else in the next problem. x had better not be equal to 7 and to 9.
The identity of composite objects isn't fixed by original composition, because how do you identify the origin? [Lowe]
     Full Idea: It is not at all clear that the identity of a composite object can be fixed by the identity of its original composition, since there are good grounds for claiming that the reverse is in fact the case.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 7.5)
     A reaction: That is, how could you identify the origin if you didn't know what it was that had originated? Nice point. See also Idea 8274. Vicars must make sure they baptise the right baby.
9. Objects / C. Structure of Objects / 8. Parts of Objects / c. Wholes from parts
If I destroy an item, I do not destroy each part of it [Wiggins]
     Full Idea: If I repair or destroy an item, I do not repair or destroy each part of it (and since each part of a part is a part this would be difficult).
     From: David Wiggins (Sameness and Substance Renewed [2001], 2.6)
     A reaction: This seems like a nice refutation of any attempt to claim that a thing is no more than the sum of its parts, but one could analyse the notion of 'destroy', and find it just meant introducing gaps between parts.
9. Objects / D. Essence of Objects / 3. Individual Essences
We can forget about individual or particularized essences [Wiggins]
     Full Idea: Let us be realistic, and forget about individual or particularized essences.
     From: David Wiggins (Sameness and Substance Renewed [2001], 4.2)
     A reaction: This is the rather weird position you reach if you follow Wiggins's 'modest' essentialism, deriving from a thing merely falling under a sortal, or into a category. What is a natural kind, if its members don't each have a shared essence?
9. Objects / D. Essence of Objects / 8. Essence as Explanatory
Essences are not explanations, but individuations [Wiggins]
     Full Idea: Essences of natural things are not fancified vacuities parading themselves ...as the ultimate explanation of everything that happens in the world. They are natures whose possession is a precondition of their owners being divided from the rest of reality.
     From: David Wiggins (Sameness and Substance Renewed [2001], 5.2)
     A reaction: Thus Wiggins rejects the explanation account of essence, with an assertion of his own (highly implausible) view that essence is about individuation rather than about behaviour. Individuation strikes me as an entirely human activity, and not 'real'.
9. Objects / D. Essence of Objects / 9. Essence and Properties
Essentialism is best represented as a predicate-modifier: □(a exists → a is F) [Wiggins, by Mackie,P]
     Full Idea: Wiggins's proposal of a predicate-modifier account is the best formal representation of essential statements. ...This simple version is perfectly adequate to represent the claim that a is essentially-F: □(a exists → a is F).
     From: report of David Wiggins (Sameness and Substance Renewed [2001], Ch.4) by Penelope Mackie - How Things Might Have Been 1.2
     A reaction: I suppose that is right. Having an essence is a feature of an entity, but it has to boil done to characteristics that define the entity, and which it must presumably always have. Could an entity ever lack its essence?
9. Objects / D. Essence of Objects / 13. Nominal Essence
The nominal essence is the idea behind a name used for sorting [Wiggins]
     Full Idea: Things being ranked under Names into sorts only as they agree with certain abstract ideas, to which we have annexed the Names, the essence of each sort comes to nothing but that abstract idea which the sortal name stands for. This is the nominal Essence.
     From: David Wiggins (Sameness and Substance Renewed [2001], III.iii.15)
     A reaction: He contrasts 'nominal essence' with 'real essence'. A key passage for David Wiggins. One shouldn't put too much emphasis on nominal essence, since it means that someone referred to as 'that idiot over there' (you, perhaps) is necessarily an idiot.
9. Objects / E. Objects over Time / 3. Three-Dimensionalism
An object 'endures' if it is always wholly present, and 'perdures' if different parts exist at different times [Lowe]
     Full Idea: The 'endurance' view is that an object persists by being 'wholly present' at more than one time, and the 'perdurance' view is that an object has different temporal parts which exist at different times.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 5)
     A reaction: It is tempting to say that only a philosopher would come up with a view as bizarre as the second one. Trying to imagine God's view of time has led to a lot of confusion. Endurance seems to need substance, so bundle views of objects encourage perdurance.
9. Objects / E. Objects over Time / 4. Four-Dimensionalism
It is easier to go from horses to horse-stages than from horse-stages to horses [Wiggins]
     Full Idea: If horse-stages made sense at all, it would be easier to go from horses to horse-stages than to go from horse-stages to horses.
     From: David Wiggins (Sameness and Substance Renewed [2001], 6.9)
     A reaction: A nice remark, analogous to 'it is easier to break a vase than to mend it'. Going from horse-stages to horses is the classic difficulty for 'bundle theories' (of objects, or persons): what is it that unites the bundle?
How can you identify temporal parts of tomatoes without referring to tomatoes? [Lowe]
     Full Idea: The temporal parts approach to identity appears to be viciously circular, for how are the 'temporal parts' of tomatoes to be individuated and identified save by reference to the very tomatoes of which they are parts?
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 5.3)
     A reaction: (This attacks the 'perdurance' view - Idea 8271) Something wrong here. Isn't Lowe begging the question, by assuming that a tomato at an instant IS the tomato? To know what a tomato is, you must spend time with it.
9. Objects / E. Objects over Time / 9. Ship of Theseus
The question is not what gets the title 'Theseus' Ship', but what is identical with the original [Wiggins]
     Full Idea: Let us remember that the title in question is not the title to the sobriquet 'Theseus' Ship'; it is the title to identity with Theseus' ship, a particular ship originating from the eighth century B.C.
     From: David Wiggins (Sameness and Substance Renewed [2001], 3.4)
     A reaction: There is an assumption here that identity is defined by origin. What is the origin of the identity of those huge football clubs that began under the name of some village team in 1875? What is the origin of 'England' as a single entity?
9. Objects / F. Identity among Objects / 1. Concept of Identity
Identity over a time and at a time aren't different concepts [Wiggins]
     Full Idea: People often speak of identity over time and distinguish it from identity at a time. But identity is just identity.
     From: David Wiggins (Sameness and Substance Renewed [2001], 2.3)
     A reaction: I myself am guilty of such usage, but it doesn't imply a commitment to a multivocal concept. The epistemological issues (of explaining what it is now, and simply reidentifying it later) seem profoundly different. Hume only admits identity over time.
Hesperus=Hesperus, and Phosphorus=Hesperus, so necessarily Phosphorus=Hesperus [Wiggins]
     Full Idea: The simple proof (from Ruth Barcan Marcus) is: Hesperus is necessarily Hesperus, so if Phosphorus is Hesperus, then Phosphorus is necessarily Hesperus.
     From: David Wiggins (Sameness and Substance Renewed [2001], 4.3)
     A reaction: This is the famous idea which she noticed well before Kripke. The point is that the simple logic of the case bestows a necessity on the identity. We shouldn't be confused by the a posteriori and contingent nature of the discovery.
9. Objects / F. Identity among Objects / 2. Defining Identity
The formal properties of identity are reflexivity and Leibniz's Law [Wiggins]
     Full Idea: The formal properties of identity are the reflexivity of identity, and Leibniz's Law (if x is the same as y, then whatever is true of one is true of the other).
     From: David Wiggins (Sameness and Substance Renewed [2001], Pr.2)
     A reaction: Presumably transitivity will also apply, and, indeed, symmetry. He seems to mean something like the 'axiomatic formal properties'.
9. Objects / F. Identity among Objects / 3. Relative Identity
Relative Identity is incompatible with the Indiscernibility of Identicals [Wiggins, by Strawson,P]
     Full Idea: Wiggins argues that Geach's Relative Identity is incompatible with the formal properties of identity, which include, besides transitivity, symmetry and reflexivity, the complete community of properties defined by the Indiscernibility of Identicals.
     From: report of David Wiggins (Sameness and Substance Renewed [2001]) by Peter F. Strawson - Review of 'Sameness and Substance' p.603
     A reaction: The tricky part is that Wiggins then goes on to say that identity depends on sortals, which sounds very close to the Geach view. I find disentangling them tricky. See Idea 14363 for a helpful comment from Strawson.
Relativity of Identity makes identity entirely depend on a category [Wiggins]
     Full Idea: The thesis of Relativity of Identity (which I steadfastly oppose) ..suggests that it makes all the difference to keeping track of continuants through space and time which concept one subsumes something under.
     From: David Wiggins (Sameness and Substance Renewed [2001], 1.1)
     A reaction: [Geach I take to be the villain of this idea] The point is that identity is entirely relative to the sortal concept, where Wiggins wants to make identity a combination of the object itself and our concept of it (I think).
To identify two items, we must have a common sort for them [Wiggins]
     Full Idea: As a necessary condition of the truth of an identity claim, some common sort f will have to be found to which they each belong. That is the point at which the primary question of identity can come into focus.
     From: David Wiggins (Sameness and Substance Renewed [2001], 2.2)
     A reaction: This is the plainest English expression I can find of Wiggins's main thesis. He maintains this thesis, while adamantly denying the idea that identity consists entirely of falling under a concept.
A clear idea of the kind of an object must precede a criterion of identity for it [Lowe]
     Full Idea: As Locke clearly understood, one must first have a clear conception of what kind of object one is dealing with in order to extract a criterion of identity for objects of that kind from that conception.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.3)
     A reaction: Archaeologist face objects which they can number, remember and take pride in, without having a clue what kind of thing they are dealing with. The two processes may not be entirely distinct.
9. Objects / F. Identity among Objects / 4. Type Identity
One view is that two objects of the same type are only distinguished by differing in matter [Lowe]
     Full Idea: One venerable tradition, exemplified in Aquinas, has it that matter is the 'principle of individuation', that is, that all that can be guaranteed to distinguish two concrete thing of the same kind is the different matter of which they are composed.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 9.5)
     A reaction: This seems to be 'identity-conditions' rather than 'individuation', according to Idea 7926. The problem would be how to identify that particular matter, apart from its composing that particular object. Replacing planks on a ship seems unimportant.
9. Objects / F. Identity among Objects / 8. Leibniz's Law
Do both 'same f as' and '=' support Leibniz's Law? [Wiggins]
     Full Idea: Is Leibniz's Law as true for 'is the same as' as it is for '='?
     From: David Wiggins (Sameness and Substance Renewed [2001], 1.2)
     A reaction: [By Leibniz's Law he means if they are the same, they support the same truths]
Substitutivity, and hence most reasoning, needs Leibniz's Law [Wiggins]
     Full Idea: Leibniz's Law underwrites the substitutivity of identity and this is a principle not long dispensable in any form of reasoning.
     From: David Wiggins (Sameness and Substance Renewed [2001], 2.7)
     A reaction: Thus the modern fashion of deriving our metaphysics from our logic. Presumably we can derive it from our epistemology too, or even from our intuitions, if we thought they were good enough as evidence.
10. Modality / A. Necessity / 3. Types of Necessity
'Conceptual' necessity is narrow logical necessity, true because of concepts and logical laws [Lowe]
     Full Idea: I can accept 'conceptual' necessity, as long as it is only identified with 'narrow' logical necessity. For I take it that the 'conceptually' necessary is that which is true solely in virtue of concepts together with the laws of logic.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 1.4)
     A reaction: In the narrow version of logical necessity (Idea 8260) some definitions are required in addition to the mere laws of logic. This implies that the concepts are dependent of definitions, which is a bit restrictive. Aren't we allowed undefined concepts?
10. Modality / A. Necessity / 5. Metaphysical Necessity
Metaphysical necessity is logical necessity 'broadly construed' [Lowe, by Lynch/Glasgow]
     Full Idea: Lowe (1998) defines metaphysical necessity in terms of logical necessity 'broadly contrued'.
     From: report of E.J. Lowe (The Possibility of Metaphysics [1998]) by Lynch,MP/Glasgow,JM - The Impossibility of Superdupervenience n 3
     A reaction: [I seem to have missed this simple thought in Lowe 1998 - must revisit]. Both metaphysical and logical necessity can be taken as 'true in all possible worlds', but that doesn't make them the same truths.
10. Modality / A. Necessity / 6. Logical Necessity
Logical necessity can be 'strict' (laws), or 'narrow' (laws and definitions), or 'broad' (all logical worlds) [Lowe]
     Full Idea: 'Strict' logical necessity is true by the laws of logic alone; 'narrow' logical necessity is true by the laws of logic plus definitions of non-logical terms; 'broad' logical necessity is true in every possible world where the laws of logic hold.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 1.4)
     A reaction: Lowe then says the third is close to 'metaphysical' necessity. I am unable to distinguish the third from the first. You can't claim that a logical implication holds in this world, but not in another possible world which has the same rules of implication.
10. Modality / B. Possibility / 1. Possibility
The metaphysically possible is what acceptable principles and categories will permit [Lowe]
     Full Idea: What is 'metaphysically' possible hinges …on the question of whether acceptable metaphysical principles and categories permit the existence of some state of affairs.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 1.3)
     A reaction: Lowe breezes along with confident assertions like this. I once heard Kit Fine tease him for over-confidence. All you do is work out 'acceptable' principles and categories, and you've cracked it!
10. Modality / E. Possible worlds / 1. Possible Worlds / d. Possible worlds actualism
Possible worlds rest on the objects about which we have suppositions [Wiggins]
     Full Idea: Worlds are the shadows of our suppositions and they take on their identity from these. Suppositions take on their identity from (inter alia) the objects they relate to. If they sever themselves from these objects, then they collapse.
     From: David Wiggins (Sameness and Substance Renewed [2001], 4.11)
     A reaction: Sounds good. My picture is of possibilities which are suggested by objecfs in the actual world, with extreme possibilities being at fifth-remove from actuality. Any worlds that go beyond natural possibility are just there for fun.
10. Modality / E. Possible worlds / 1. Possible Worlds / e. Against possible worlds
Does every abstract possible world exist in every possible world? [Lowe]
     Full Idea: Possible worlds, conceived of as abstracta, surely exist 'in every possible world'.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 12)
     A reaction: A possible very infinite regress, if a particular possible world is distinguished from another only by being perceived from Actual Word 1 or Actual World 2.. How many possible worlds are there? The standard answer is 'lots', rather than infinity.
10. Modality / E. Possible worlds / 2. Nature of Possible Worlds / b. Worlds as fictions
Not every story corresponds to a possible world [Wiggins]
     Full Idea: It is perfectly notorious that not every story corresponds to a possible world.
     From: David Wiggins (Sameness and Substance Renewed [2001], 2.4)
     A reaction: Thus a fantasy castle might be decorated with 'beautiful circular squares', or be threatened by a lump of enriched uranium twenty feet in diameter. Wiggins is replying to the claim that a possible world represents a 'story'.
11. Knowledge Aims / C. Knowing Reality / 3. Idealism / a. Idealism
While space may just be appearance, time and change can't be, because the appearances change [Lowe]
     Full Idea: Although the appearance of distance and so of space may conceivably be no more than an appearance (as Berkeley held), the appearance of change and so of time cannot be no more than appearance - for the appearance of change involves change (in minds).
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 7.9)
     A reaction: This would seem to place some sort of limit on idealism. Since it doesn't offer a barrier to solipsism, though, it is not much consolation. We mustn't forget that Parmenides and Zeno of Elea proved that change is just an illusion.
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / a. Qualities in perception
Properties or qualities are essentially adjectival, not objectual [Lowe]
     Full Idea: I consider properties or qualities to be essentially adjectival rather than objectual in nature (and the same applies to relations, though they are adjectival to more than one object).
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 7.1)
     A reaction: Personally I am inclined to say that properties are either real causal powers (functions of objects?), such as being sharp, or else they are subjective ways of distinguishing things (e.g. colours). Or fictions. 'Adjectival' is too vague.
14. Science / D. Explanation / 2. Types of Explanation / k. Explanations by essence
Asking 'what is it?' nicely points us to the persistence of a continuing entity [Wiggins]
     Full Idea: The special effectiveness of the 'what is it?' question is that, in the case of continuants, it refers us back to our constantly exercised idea of the persistence and life-span of an entity.
     From: David Wiggins (Sameness and Substance Renewed [2001], 2.2)
     A reaction: Compare 'this is a human' with 'this is a member of a family noted for its longevity'. We can't simply answer 'what is it?' by tossing it into the nearest category. I say we need an individual essence for explanation, not just a sortal.
17. Mind and Body / A. Mind-Body Dualism / 1. Dualism
The idea that Cartesian souls are made of some ghostly 'immaterial' stuff is quite unwarranted [Lowe]
     Full Idea: The vulgar notion, propagated by some modern physicalist philosophers, that Cartesian souls are supposed to be made of some sort of ghostly, 'immaterial' stuff - a near contradiction in terms - is quite unwarranted.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 9.5)
     A reaction: A nice illustration of the service which can be offered by this database. See Idea 3423 for an illustration of the sort of thing which Lowe is attacking. See Idea 5011 for a quotation from Descartes on the subject. I leave the decision with my visitor...
18. Thought / D. Concepts / 2. Origin of Concepts / a. Origin of concepts
The mind conceptualizes objects; yet objects impinge upon the mind [Wiggins]
     Full Idea: The mind conceptualizes objects; yet objects impinge upon the mind.
     From: David Wiggins (Sameness and Substance Renewed [2001], 3.6)
     A reaction: I like this piece of simple common sense. I personally don't think you can reach first base in a sensible discussion if you don't face up to both sides of this idea (especially the second half, which many philosophers, especially of language, neglect).
18. Thought / D. Concepts / 3. Ontology of Concepts / c. Fregean concepts
We can use 'concept' for the reference, and 'conception' for sense [Wiggins]
     Full Idea: We can use the Fregean 'concept' on the level of reference and naming, and prefer the word 'conception' for the Kantian idea of the sense, or the information needed to understand the concept.
     From: David Wiggins (Sameness and Substance Renewed [2001], Pr.5)
     A reaction: This is a nice suggestion, and at first blush I think it should be adopted. Sometimes philosophers regret adopting a terminology several hundred years after it has been agreed.
18. Thought / E. Abstraction / 1. Abstract Thought
Abstractions are non-spatial, or dependent, or derived from concepts [Lowe]
     Full Idea: There are three conceptions of abstractness: 1) non-spatial entities, the opposite of 'concrete' (e.g. numbers and universals); 2) an entity logically incapable of a separate existence (e.g. an apple's colour); 3) Fregean abstractions from concepts.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.1)
     A reaction: [Lowe p.218 explains the third one] Lowe rejects the third one, and it is a moot point whether the second one could actually be classed as an entity (do they have identity-conditions?), so the big issue is the first one.
18. Thought / E. Abstraction / 7. Abstracta by Equivalence
You can think of a direction without a line, but a direction existing with no lines is inconceivable [Lowe]
     Full Idea: Although one can separate 'in thought' a direction from any line of which it is the direction, one cannot conceive of a direction existing in the absence of any line possessing that direction.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 10.3)
     A reaction: Intriguing. If I ask you to imagine a line going in a certain direction, don't you need the direction before you can think of the line? 'That line is going in the wrong direction'. Maybe abstract ideas only exist 'in thought'. Lowe is a realist here.
23. Ethics / C. Virtue Theory / 3. Virtues / a. Virtues
The six perfections are giving, morality, patience, vigour, meditation, and wisdom [Nagarjuna]
     Full Idea: The six perfections are of giving, morality, patience, vigour, meditation, and wisdom.
     From: Nagarjuna (Mahaprajnaparamitashastra [c.120], 88)
     A reaction: What is 'morality', if giving is not part of it? I like patience and vigour being two of the virtues, which immediately implies an Aristotelian mean (which is always what is 'appropriate').
26. Natural Theory / B. Natural Kinds / 3. Knowing Kinds
Lawlike propensities are enough to individuate natural kinds [Wiggins]
     Full Idea: For all the purposes of identity and individuation of things that belong to natural kinds..., it is enough to have regard for the lawlike propensities of members of the kind.
     From: David Wiggins (Sameness and Substance Renewed [2001], 4.1)
     A reaction: This may have got things in reverse, since it is hard to see how you could pick out any laws if you didn't assume the existence of natural kinds which were causing the regularities in the behaviour.
26. Natural Theory / C. Causation / 8. Particular Causation / b. Causal relata
To cite facts as the elements in causation is to confuse states of affairs with states of objects [Lowe]
     Full Idea: Philosophers who have advocated facts as being causal relata have confused them with states, such as a stone's being heavy; they are guilty of confusing states of affairs with states of objects.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 11.3)
     A reaction: A state of an object can be individuated rather more precisely than a fact or state of affairs. There are, of course, vast numbers of states of objects, but only a few states of affairs, involved in (say) the fall of the Berlin Wall.
27. Natural Reality / C. Space / 3. Points in Space
Points are limits of parts of space, so parts of space cannot be aggregates of them [Lowe]
     Full Idea: Points are limits of parts of space, in which case parts of space cannot be aggregates of them.
     From: E.J. Lowe (The Possibility of Metaphysics [1998], 3.9)
     A reaction: To try to build space out of points (how many per cc?) is fairly obviously asking for trouble, but Lowe articulates nicely why it is a non-starter.