more from Ludwig Wittgenstein

Single Idea 11062

[catalogued under 5. Theory of Logic / A. Overview of Logic / 4. Pure Logic]

Full Idea

What makes logic a priori is the impossibility of illogical thought.

Gist of Idea

Logic is a priori because it is impossible to think illogically


Ludwig Wittgenstein (Tractatus Logico-Philosophicus [1921], 5.4731)

Book Reference

Wittgenstein,Ludwig: 'Tractatus Logico-Philosophicus', ed/tr. Pears,D. /McGuinness,B. [RKP 1961], p.47

A Reaction

That places the a priori aspect of it in us (in the epistemology), rather than in the necessity of the logic (the ontology), which is as Kripke says it should be.