Combining Texts

All the ideas for 'The philosophical basis of intuitionist logic', 'Letter to Frege 29.12.1899' and 'Knowledge by Acquaintance and Description-1'

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8 ideas

3. Truth / G. Axiomatic Truth / 1. Axiomatic Truth

15716

If axioms and their implications have no contradictions, they pass my criterion of truth and existence [Hilbert]

4. Formal Logic / E. Nonclassical Logics / 2. Intuitionist Logic

18073

Dummett says classical logic rests on meaning as truth, while intuitionist logic rests on assertability [Dummett, by Kitcher]

5. Theory of Logic / G. Quantification / 1. Quantification

19057

Classical quantification is an infinite conjunction or disjunction - but you may not know all the instances [Dummett]

8. Modes of Existence / D. Universals / 2. Need for Universals

21710

We know a universal in 'yellow differs from blue' or 'yellow resembles blue less than green does' [Russell]

12. Knowledge Sources / B. Perception / 4. Sense Data / d. Sense-data problems

8854	My 'acquaintance' with sense-data is nothing like my knowing New York [Williams,M on Russell]

19. Language / A. Nature of Meaning / 4. Meaning as Truth-Conditions

19055

Stating a sentence's truth-conditions is just paraphrasing the sentence [Dummett]

19056

If a sentence is effectively undecidable, we can never know its truth conditions [Dummett]

19. Language / A. Nature of Meaning / 6. Meaning as Use

19054

Meaning as use puts use beyond criticism, and needs a holistic view of language [Dummett]