Combining Texts

Ideas for 'Logicism Revisited', 'The Science of Knowing (Wissenschaftslehre) [1st ed]' and 'Essence and Modality'

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5 ideas

5. Theory of Logic / C. Ontology of Logic / 3. If-Thenism

10061

The If-thenist view only seems to work for the axiomatised portions of mathematics [Musgrave]

10065

Perhaps If-thenism survives in mathematics if we stick to first-order logic [Musgrave]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not

22017

Normativity needs the possibility of negation, in affirmation and denial [Fichte, by Pinkard]

5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth

10049

Logical truths may contain non-logical notions, as in 'all men are men' [Musgrave]

10050

A statement is logically true if it comes out true in all interpretations in all (non-empty) domains [Musgrave]