Combining Texts

All the ideas for 'Mahaprajnaparamitashastra', 'Philosophy of Logic' and 'The Theory of Objects'

expand these ideas     |    start again     |     specify just one area for these texts

32 ideas

2. Reason / B. Laws of Thought / 3. Non-Contradiction
9023 If you say that a contradiction is true, you change the meaning of 'not', and so change the subject [Quine]
3. Truth / F. Semantic Truth / 2. Semantic Truth
9012 Talk of 'truth' when sentences are mentioned; it reminds us that reality is the point of sentences [Quine]
3. Truth / H. Deflationary Truth / 1. Redundant Truth
9011 Truth is redundant for single sentences; we do better to simply speak the sentence [Quine]
4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / e. Axioms of PL
9013 We can eliminate 'or' from our basic theory, by paraphrasing 'p or q' as 'not(not-p and not-q)' [Quine]
4. Formal Logic / E. Nonclassical Logics / 6. Free Logic
8250 So-called 'free logic' operates without existence assumptions [Meinong, by George/Van Evra]
5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
9020 My logical grammar has sentences by predication, then negation, conjunction, and existential quantification [Quine]
5. Theory of Logic / A. Overview of Logic / 3. Value of Logic
9028 Maybe logical truth reflects reality, but in different ways in different languages [Quine]
5. Theory of Logic / A. Overview of Logic / 7. Second-Order Logic
10014 Quine rejects second-order logic, saying that predicates refer to multiple objects [Quine, by Hodes]
10828 Quantifying over predicates is treating them as names of entities [Quine]
5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle
9024 Excluded middle has three different definitions [Quine]
5. Theory of Logic / D. Assumptions for Logic / 4. Identity in Logic
10012 Quantification theory can still be proved complete if we add identity [Quine]
5. Theory of Logic / F. Referring in Logic / 1. Naming / f. Names eliminated
9016 Names are not essential, because naming can be turned into predication [Quine]
5. Theory of Logic / G. Quantification / 1. Quantification
9015 Universal quantification is widespread, but it is definable in terms of existential quantification [Quine]
5. Theory of Logic / G. Quantification / 4. Substitutional Quantification
9025 You can't base quantification on substituting names for variables, if the irrationals cannot all be named [Quine]
9026 Some quantifications could be false substitutionally and true objectually, because of nameless objects [Quine]
5. Theory of Logic / G. Quantification / 5. Second-Order Quantification
10705 Putting a predicate letter in a quantifier is to make it the name of an entity [Quine]
5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth
9027 A sentence is logically true if all sentences with that grammatical structure are true [Quine]
8. Modes of Existence / B. Properties / 12. Denial of Properties
9017 Predicates are not names; predicates are the other parties to predication [Quine]
9. Objects / A. Existence of Objects / 1. Physical Objects
9018 A physical object is the four-dimensional material content of a portion of space-time [Quine]
9. Objects / A. Existence of Objects / 2. Abstract Objects / c. Modern abstracta
8719 There can be impossible and contradictory objects, if they can have properties [Meinong, by Friend]
9. Objects / A. Existence of Objects / 3. Objects in Thought
8971 There are objects of which it is true that there are no such objects [Meinong]
8718 Meinong says an object need not exist, but must only have properties [Meinong, by Friend]
9. Objects / A. Existence of Objects / 4. Impossible objects
7756 Meinong said all objects of thought (even self-contradictions) have some sort of being [Meinong, by Lycan]
15781 The objects of knowledge are far more numerous than objects which exist [Meinong]
9. Objects / E. Objects over Time / 4. Four-Dimensionalism
9019 Four-d objects helps predication of what no longer exists, and quantification over items from different times [Quine]
10. Modality / B. Possibility / 8. Conditionals / b. Types of conditional
9014 Some conditionals can be explained just by negation and conjunction: not(p and not-q) [Quine]
19. Language / A. Nature of Meaning / 8. Synonymy
9009 Single words are strongly synonymous if their interchange preserves truth [Quine]
19. Language / D. Propositions / 6. Propositions Critique
9007 It makes no sense to say that two sentences express the same proposition [Quine]
9008 There is no rule for separating the information from other features of sentences [Quine]
9010 We can abandon propositions, and just talk of sentences and equivalence [Quine]
19. Language / F. Communication / 5. Pragmatics / a. Contextual meaning
9021 A good way of explaining an expression is saying what conditions make its contexts true [Quine]
23. Ethics / C. Virtue Theory / 3. Virtues / a. Virtues
7903 The six perfections are giving, morality, patience, vigour, meditation, and wisdom [Nagarjuna]