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10:28
YouTube
TrevTutor
Natural Deductive Proofs: THEOREMS
In this video on #Logic, we learn what theorems are in natural deductive proofs and prove four of them. 0:00 [What are theorems?] 0:59 [Proof #1: If P then P] 2:38 [Proof #2: P and not P] 4:33 [Proof #3: if P then not not P] 6:38 [Proof #4: P or not P] 9:27 [Theorem Introduction] If you want to support the channel, hit the "JOIN" button above ...
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