Combining Texts

All the ideas for 'works', 'A priori/A posteriori' and 'Brains and Behaviour'

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3 ideas

5. Theory of Logic / D. Assumptions for Logic / 3. Contradiction
10121 Contradiction is not a sign of falsity, nor lack of contradiction a sign of truth [Pascal]
     Full Idea: Contradiction is not a sign of falsity, nor the lack of contradiction a sign of truth.
     From: Blaise Pascal (works [1660]), quoted by A.George / D.J.Velleman - Philosophies of Mathematics Ch.6
     A reaction: [Quoted in Auden and Kronenberger's Book of Aphorisms] Presumably we would now say that contradiction is a purely formal, syntactic notion, and not a semantic one. If you hit a contradiction, something has certainly gone wrong.
12. Knowledge Sources / A. A Priori Knowledge / 10. A Priori as Subjective
3913 Maybe imagination is the source of a priori justification [Casullo]
     Full Idea: Some maintain that experiments in imagination are the source of a priori justification.
     From: Albert Casullo (A priori/A posteriori [1992], p.1)
     A reaction: What else could assessments of possibility and necessity be based on except imagination?
17. Mind and Body / B. Behaviourism / 4. Behaviourism Critique
3460 Superactors and superspartans count against behaviourism [Putnam, by Searle]
     Full Idea: Putnam proposed the superactor/superspartan objection to behaviourism.
     From: report of Hilary Putnam (Brains and Behaviour [1963]) by John Searle - The Rediscovery of the Mind Ch. 2.II
     A reaction: This is a beautiful compression of the obvious counterexamples, which are behaviour-wth-no-experience, and experience-with-no-behaviour. Presumably, though, Spartans are disposed to go 'aagh!' when they get home, and there are no 'super' actors.