Single Idea 18803

[catalogued under 4. Formal Logic / B. Propositional Logic PL / 1. Propositional Logic]

Full Idea

The classical semantics of natural language propositions says 1) valid arguments preserve truth, 2) no statement is both true and false, 3) each statement is either true or false, 4) the familiar truth tables.

Gist of Idea

Semantics for propositions: 1) validity preserves truth 2) non-contradition 3) bivalence 4) truth tables

Source

Ian Rumfitt (The Boundary Stones of Thought [2015], 1.1)

Book Reference

Rumfitt,Ian: 'The Boundary Stones of Thought' [OUP 2015], p.10