Combining Texts

Ideas for 'fragments/reports', 'fragments/reports' and 'The Justification of Deduction'

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6 ideas

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

11066

Deduction is justified by the semantics of its metalanguage [Dummett, by Hanna]

5. Theory of Logic / B. Logical Consequence / 2. Types of Consequence

19058

Syntactic consequence is positive, for validity; semantic version is negative, with counterexamples [Dummett]

5. Theory of Logic / I. Semantics of Logic / 1. Semantics of Logic

19063

Beth trees show semantics for intuitionistic logic, in terms of how truth has been established [Dummett]

19059

In standard views you could replace 'true' and 'false' with mere 0 and 1 [Dummett]

19062

Classical two-valued semantics implies that meaning is grasped through truth-conditions [Dummett]

5. Theory of Logic / K. Features of Logics / 4. Completeness

19065

Soundness and completeness proofs test the theory of meaning, rather than the logic theory [Dummett]