Ideas from 'works' by Michael Dummett [1970], by Theme Structure

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5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle
Anti-realism needs an intuitionist logic with no law of 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.
                        From: report of Michael Dummett (works [1970]) by Alexander Miller - Philosophy of Language 9.4
                        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.
7. Existence / D. Theories of Reality / 3. Anti-realism
For anti-realists there are no natural distinctions between objects
                        Full Idea: Dummett says that anti-realism offers us a picture of reality as an amorphous lump not yet articulated into discrete objects.
                        From: report of Michael Dummett (works [1970]) by Josť A. Benardete - Metaphysics: the logical approach Ch.2
                        A reaction: This might be called 'weak' anti-realism, where 'strong' anti-realism is the view that reality is quite unknowable, and possibly non-existent.