Combining Philosophers

All the ideas for Porphyry, Fraser MacBride and Georges Rey

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116 ideas

1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / b. Philosophy as transcendent
Philosophy has its own mode of death, by separating soul from body [Porphyry]
3. Truth / A. Truth Problems / 2. Defining Truth
We might define truth as arising from the truth-maker relation [MacBride]
3. Truth / B. Truthmakers / 1. For Truthmakers
Phenomenalists, behaviourists and presentists can't supply credible truth-makers [MacBride]
3. Truth / B. Truthmakers / 2. Truthmaker Relation
If truthmaking is classical entailment, then anything whatsoever makes a necessary truth [MacBride]
3. Truth / B. Truthmakers / 3. Truthmaker Maximalism
Maximalism follows Russell, and optimalism (no negative or universal truthmakers) follows Wittgenstein [MacBride]
'Maximalism' says every truth has an actual truthmaker [MacBride]
3. Truth / B. Truthmakers / 5. What Makes Truths / a. What makes truths
The main idea of truth-making is that what a proposition is about is what matters [MacBride]
3. Truth / B. Truthmakers / 6. Making Negative Truths
There are different types of truthmakers for different types of negative truth [MacBride]
There aren't enough positive states out there to support all the negative truths [MacBride]
3. Truth / B. Truthmakers / 8. Making General Truths
Optimalists say that negative and universal are true 'by default' from the positive truths [MacBride]
3. Truth / B. Truthmakers / 12. Rejecting Truthmakers
Even idealists could accept truthmakers, as mind-dependent [MacBride]
Does 'this sentence has no truth-maker' have a truth-maker? Reductio suggests it can't have [MacBride]
Maybe 'makes true' is not an active verb, but just a formal connective like 'because'? [MacBride]
Truthmaker talk of 'something' making sentences true, which presupposes objectual quantification [MacBride]
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
Connectives link sentences without linking their meanings [MacBride]
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not
'A is F' may not be positive ('is dead'), and 'A is not-F' may not be negative ('is not blind') [MacBride]
5. Theory of Logic / F. Referring in Logic / 1. Naming / d. Singular terms
Varieties of singular terms are used to designate token particulars [Rey]
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / d. Natural numbers
Numbers are identified by their main properties and relations, involving the successor function [MacBride]
6. Mathematics / B. Foundations for Mathematics / 7. Mathematical Structuralism / e. Structuralism critique
For mathematical objects to be positions, positions themselves must exist first [MacBride]
6. Mathematics / C. Sources of Mathematics / 4. Mathematical Empiricism / b. Indispensability of mathematics
Physics requires the existence of properties, and also the abstract objects of arithmetic [Rey]
7. Existence / A. Nature of Existence / 6. Criterion for Existence
Maybe it only exists if it is a truthmaker (rather than the value of a variable)? [MacBride]
7. Existence / C. Structure of Existence / 1. Grounding / a. Nature of grounding
Different types of 'grounding' seem to have no more than a family resemblance relation [MacBride]
Which has priority - 'grounding' or 'truth-making'? [MacBride]
7. Existence / C. Structure of Existence / 6. Fundamentals / d. Logical atoms
Russell allows some complex facts, but Wittgenstein only allows atomic facts [MacBride]
8. Modes of Existence / A. Relations / 1. Nature of Relations
It may be that internal relations like proportion exist, because we directly perceive it [MacBride]
8. Modes of Existence / A. Relations / 2. Internal Relations
Internal relations are fixed by existences, or characters, or supervenience on characters [MacBride]
8. Modes of Existence / A. Relations / 4. Formal Relations / a. Types of relation
'Multigrade' relations are those lacking a fixed number of relata [MacBride]
8. Modes of Existence / C. Powers and Dispositions / 2. Powers as Basic
The presence of the incorporeal is only known by certain kinds of disposition [Porphyry]
8. Modes of Existence / D. Universals / 1. Universals
Are genera and species real or conceptual? bodies or incorporeal? in sensibles or separate from them? [Porphyry]
9. Objects / B. Unity of Objects / 1. Unifying an Object / a. Intrinsic unification
Diversity arises from the power of unity [Porphyry]
9. Objects / F. Identity among Objects / 7. Indiscernible Objects
The Indiscernibility of Identicals is a truism; but the Identity of Indiscernibles depends on possible identical worlds [Rey]
10. Modality / A. Necessity / 6. Logical Necessity
Wittgenstein's plan to show there is only logical necessity failed, because of colours [MacBride]
12. Knowledge Sources / A. A Priori Knowledge / 1. Nature of the A Priori
The traditional a priori is justified without experience; post-Quine it became unrevisable by experience [Rey]
12. Knowledge Sources / D. Empiricism / 1. Empiricism
Empiricism says experience is both origin and justification of all knowledge [Rey]
12. Knowledge Sources / E. Direct Knowledge / 4. Memory
Memory is not conserved images, but reproduction of previous thought [Porphyry]
13. Knowledge Criteria / C. External Justification / 9. Naturalised Epistemology
Animal learning is separate from their behaviour [Rey]
14. Science / D. Explanation / 3. Best Explanation / a. Best explanation
Abduction could have true data and a false conclusion, and may include data not originally mentioned [Rey]
14. Science / D. Explanation / 3. Best Explanation / b. Ultimate explanation
It's not at all clear that explanation needs to stop anywhere [Rey]
15. Nature of Minds / A. Nature of Mind / 1. Mind / c. Features of mind
Intelligence is aware of itself, so the intelligence is both the thinker and the thought [Porphyry]
15. Nature of Minds / A. Nature of Mind / 1. Mind / d. Location of mind
The soul is everywhere and nowhere in the body, and must be its cause [Porphyry]
15. Nature of Minds / A. Nature of Mind / 1. Mind / e. Questions about mind
The three theories are reduction, dualism, eliminativism [Rey]
15. Nature of Minds / B. Features of Minds / 1. Consciousness / e. Cause of consciousness
Is consciousness 40Hz oscillations in layers 5 and 6 of the visual cortex? [Rey]
15. Nature of Minds / B. Features of Minds / 3. Privacy
Dualist privacy is seen as too deep for even telepathy to reach [Rey]
15. Nature of Minds / B. Features of Minds / 4. Intentionality / b. Intentionality theories
Intentional explanations are always circular [Rey]
15. Nature of Minds / B. Features of Minds / 5. Qualia / a. Nature of qualia
Arithmetic and unconscious attitudes have no qualia [Rey]
Why qualia, and why this particular quale? [Rey]
15. Nature of Minds / B. Features of Minds / 5. Qualia / b. Qualia and intentionality
If qualia have no function, their attachment to thoughts is accidental [Rey]
Are qualia a type of propositional attitude? [Rey]
15. Nature of Minds / B. Features of Minds / 5. Qualia / c. Explaining qualia
Are qualia irrelevant to explaining the mind? [Rey]
15. Nature of Minds / B. Features of Minds / 6. Inverted Qualia
If colour fits a cone mapping hue, brightness and saturation, rotating the cone could give spectrum inversion [Rey]
16. Persons / B. Nature of the Self / 6. Self as Higher Awareness
Self-consciousness may just be nested intentionality [Rey]
16. Persons / C. Self-Awareness / 2. Knowing the Self
Successful introspection reveals the substrate along with the object of thought [Porphyry]
16. Persons / C. Self-Awareness / 4. Errors in Introspection
Experiments prove that people are often unaware of their motives [Rey]
Brain damage makes the unreliability of introspection obvious [Rey]
16. Persons / F. Free Will / 5. Against Free Will
Free will isn't evidence against a theory of thought if there is no evidence for free will [Rey]
If reason could be explained in computational terms, there would be no need for the concept of 'free will' [Rey]
17. Mind and Body / A. Mind-Body Dualism / 1. Dualism
The soul is bound to matter by the force of its own disposition [Porphyry]
17. Mind and Body / B. Behaviourism / 1. Behaviourism
Maybe behaviourists should define mental states as a group [Rey]
Behaviourism is eliminative, or reductionist, or methodological [Rey]
17. Mind and Body / B. Behaviourism / 4. Behaviourism Critique
Animals don't just respond to stimuli, they experiment [Rey]
How are stimuli and responses 'similar'? [Rey]
Behaviour is too contingent and irrelevant to be the mind [Rey]
17. Mind and Body / C. Functionalism / 1. Functionalism
If a normal person lacked a brain, would you say they had no mind? [Rey]
Dualism and physicalism explain nothing, and don't suggest any research [Rey]
17. Mind and Body / C. Functionalism / 6. Homuncular Functionalism
Homuncular functionalism (e.g. Freud) could be based on simpler mechanical processes [Rey]
17. Mind and Body / C. Functionalism / 7. Chinese Room
Is the room functionally the same as a Chinese speaker? [Rey]
Searle is guilty of the fallacy of division - attributing a property of the whole to a part [Rey]
17. Mind and Body / C. Functionalism / 8. Functionalism critique
One computer program could either play chess or fight a war [Rey]
17. Mind and Body / E. Mind as Physical / 3. Eliminativism
Human behaviour can show law-like regularity, which eliminativism can't explain [Rey]
If you explain water as H2O, you have reduced water, but not eliminated it [Rey]
17. Mind and Body / E. Mind as Physical / 4. Connectionism
Connectionism assigns numbers to nodes and branches, and plots the outcomes [Rey]
Connectionism explains well speed of perception and 'graceful degradation' [Rey]
Connectionism explains irrationality (such as the Gamblers' Fallacy) quite well [Rey]
Pattern recognition is puzzling for computation, but makes sense for connectionism [Rey]
17. Mind and Body / E. Mind as Physical / 7. Anti-Physicalism / a. Physicalism critique
Can identity explain reason, free will, non-extension, intentionality, subjectivity, experience? [Rey]
Physicalism offers something called "complexity" instead of mental substance [Rey]
18. Thought / A. Modes of Thought / 2. Propositional Attitudes
Some attitudes are information (belief), others motivate (hatred) [Rey]
18. Thought / B. Mechanics of Thought / 3. Modularity of Mind
Children speak 90% good grammar [Rey]
Good grammar can't come simply from stimuli [Rey]
18. Thought / B. Mechanics of Thought / 4. Language of Thought
Animals may also use a language of thought [Rey]
We train children in truth, not in grammar [Rey]
18. Thought / B. Mechanics of Thought / 6. Artificial Thought / a. Artificial Intelligence
Images can't replace computation, as they need it [Rey]
CRTT is good on deduction, but not so hot on induction, abduction and practical reason [Rey]
18. Thought / C. Content / 1. Content
Problem-solving clearly involves manipulating images [Rey]
Animals map things over time as well as over space [Rey]
18. Thought / C. Content / 6. Broad Content
Simple externalism is that the meaning just is the object [Rey]
18. Thought / D. Concepts / 4. Structure of Concepts / h. Family resemblance
Anything bears a family resemblance to a game, but obviously not anything counts as one [Rey]
19. Language / A. Nature of Meaning / 5. Meaning as Verification
A one hour gap in time might be indirectly verified, but then almost anything could be [Rey]
19. Language / A. Nature of Meaning / 6. Meaning as Use
The meaning of "and" may be its use, but not of "animal" [Rey]
19. Language / A. Nature of Meaning / 7. Meaning Holism / b. Language holism
Semantic holism means new evidence for a belief changes the belief, and we can't agree on concepts [Rey]
19. Language / A. Nature of Meaning / 8. Synonymy
Externalist synonymy is there being a correct link to the same external phenomena [Rey]
19. Language / B. Reference / 3. Direct Reference / b. Causal reference
Causal theories of reference (by 'dubbing') don't eliminate meanings in the heads of dubbers [Rey]
If meaning and reference are based on causation, then virtually everything has meaning [Rey]
19. Language / B. Reference / 4. Descriptive Reference / a. Sense and reference
Referential Opacity says truth is lost when you substitute one referring term ('mother') for another ('Jocasta') [Rey]
19. Language / E. Analyticity / 1. Analytic Propositions
Analytic judgements can't be explained by contradiction, since that is what is assumed [Rey]
'Married' does not 'contain' its symmetry, nor 'bigger than' its transitivity [Rey]
Analytic statements are undeniable (because of meaning), rather than unrevisable [Rey]
The meaning properties of a term are those which explain how the term is typically used [Rey]
An intrinsic language faculty may fix what is meaningful (as well as grammatical) [Rey]
Research throws doubts on the claimed intuitions which support analyticity [Rey]
19. Language / E. Analyticity / 4. Analytic/Synthetic Critique
If we claim direct insight to what is analytic, how do we know it is not sub-consciously empirical? [Rey]
19. Language / F. Communication / 5. Pragmatics / b. Implicature
A simple chaining device can't build sentences containing 'either..or', or 'if..then' [Rey]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / e. Human nature
Justice is each person fulfilling his function [Porphyry]
22. Metaethics / B. Value / 2. Values / g. Love
We should avoid the pleasures of love, or at least, should not enact our dreams [Porphyry]
23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / c. Motivation for virtue
Civil virtues make us behave benevolently, and thereby unite citizens [Porphyry]
Civil virtues control the passions, and make us conform to our nature [Porphyry]
Purificatory virtues detach the soul completely from the passions [Porphyry]
23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / h. Right feelings
Our desires become important when we have desires about desires [Rey]
23. Ethics / C. Virtue Theory / 3. Virtues / a. Virtues
There are practical, purificatory, contemplative, and exemplary virtues [Porphyry]
26. Natural Theory / A. Speculations on Nature / 1. Nature
Unified real existence is neither great nor small, though greatness and smallness participate in it [Porphyry]
27. Natural Reality / D. Time / 1. Nature of Time / c. Idealist time
Time is the circular movement of the soul [Porphyry]
27. Natural Reality / D. Time / 1. Nature of Time / e. Eventless time
Some think time is seen at rest, as well as in movement [Porphyry]
28. God / A. Divine Nature / 2. Divine Nature
God is nowhere, and hence everywhere [Porphyry]
28. God / C. Attitudes to God / 2. Pantheism
Everything existing proceeds from divinity, and is within divinity [Porphyry]
29. Religion / D. Religious Issues / 2. Immortality / b. Soul
Nature binds or detaches body to soul, but soul itself joins and detaches soul from body [Porphyry]
Individual souls are all connected, though distinct, and without dividing universal Soul [Porphyry]