Single Idea 7798

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

Full Idea

The axioms of propositional logic are: A→(B→A); A→(B→C)→(A→B)→(A→C) ; and (¬A→¬B)→(B→A).

Gist of Idea

There are three axiom schemas for propositional logic

Source

Rod Girle (Modal Logics and Philosophy [2000], 6.5)

Book Reference

Girle,Rod: 'Modal Logics and Philosophy' [Acumen 2000], p.92

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