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Ideas for 'Thinking About Mathematics', 'Propositional Objects' and 'Lecture on Nominalism'

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5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle

8729	Intuitionists deny excluded middle, because it is committed to transcendent truth or objects [Shapiro]

5. Theory of Logic / E. Structures of Logic / 6. Relations in Logic

21698

All relations, apart from ancestrals, can be reduced to simpler logic [Quine]