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Ideas for 'Confessions', 'Critique of Practical Reason' and 'The Boundary Stones of Thought'

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2 ideas

4. Formal Logic / E. Nonclassical Logics / 2. Intuitionist Logic

18799

Intuitionists can accept Double Negation Elimination for decidable propositions [Rumfitt]

18798

It is the second-order part of intuitionistic logic which actually negates some classical theorems [Rumfitt]