Single Idea 10895

[catalogued under 5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth]

Full Idea

A propositional logic sentence is 'logically true', written |= φ, if it is true for every admissible truth-assignment.

Gist of Idea

'Logically true' (|= φ) is true for every truth-assignment


José L. Zalabardo (Introduction to the Theory of Logic [2000], §2.4)

Book Reference

Zalabardo,José L.: 'Introduction to the Theory of Logic' [Westview 2000], p.53