Single Idea 7334

[catalogued under 5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle]

Full Idea

Dummett argues that antirealism implies that classical logic must be given up in favour of some form of intuitionistic logic that does not have the law of excluded middle as a theorem.

Gist of Idea

Anti-realism needs an intuitionist logic with no law of excluded middle

Source

report of Michael Dummett (works [1970]) by Alexander Miller - Philosophy of Language 9.4

Book Reference

Miller,Alexander: 'Philosophy of Language' [UCL Press 1998], p.294


A Reaction

Only realists can think every proposition is either true or false, even if it is beyond the bounds of our possible knowledge (e.g. tiny details from remote history). Personally I think "Plato had brown eyes" is either true or false.