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Ideas for 'Lectures 1930-32 (student notes)', 'Papers of 1918' and 'Vagueness, Truth and Logic'

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2 ideas

19. Language / D. Propositions / 1. Propositions
A proposition is any expression which can be significantly negated [Wittgenstein]
19. Language / D. Propositions / 4. Mental Propositions
Propositions don't name facts, because two opposed propositions can match one fact [Russell]