Logic - Fitch-style Natural Deduction Proofs #46, 47, 40

Описание к видео Logic - Fitch-style Natural Deduction Proofs #46, 47, 40

Logic - Rose - MBHS - Blair - Natural deduction proofs in predicate logic in a Fitch-style system. We prove #46, 47, & 40 from the packet. Proof #46 is just a more difficult version of proof #45; I explain how to reason through it. Proof #47 is a good example of how our proof system deals with equality. Proof #40 (somewhat controversial!) is only valid if we exclude nonempty domains. This one is a little tricky. - 11/15/2020
This concludes our mini-course on Natural Deduction.
Part of a series: A Short Course on Natural Deduction: Fitch-style proofs for Propositional and Predicate Logic:    • A Short Course on Natural Deduction: ...  

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