- Physical Description: 1 online resource (streaming video file) (33 minutes): digital, .flv file, sound
- Publisher: [San Francisco, California, USA] : The Great Courses, 2016.
Title from title frames.
In Process Record.
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Originally produced by The Great Courses in 2016.
Enlarge your ability to prove arguments with natural deduction by studying nine equivalenceśsentences that are truth-functionally the same. For example, double negation asserts that a sentence and its double negation are equivalent. "It is not the case that I didńt call my mother,"means that I did call my mother.
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Mode of access: World Wide Web.
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