Single Idea 9119

[catalogued under 5. Theory of Logic / D. Assumptions for Logic / 1. Bivalence]

Full Idea

The history of deviant logics is without a single success. Bivalence has been denied at least since Aristotle, yet no anti-bivalent theory has ever left the philosophical nursery.

Gist of Idea

No attempt to deny bivalence has ever been accepted


Roy Sorensen (Vagueness and Contradiction [2001], Intro)

Book Reference

Sorensen,Roy: 'Vagueness and Contradiction' [OUP 2004], p.8

A Reaction

This is part of a claim that nothing in reality is vague - it is just our ignorance of the truth or falsity of some propositions. Personally I don't see why 'Grandad is bald' has to have a determinate truth value.