I&C SCI 6B Chapter Notes - Chapter 1.4: Logical Equivalence
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2 Oct 2018
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I&c sci 6b boolean algebra and logic 36520. If two compounds are logically equivalent, and a tautology, if they are true no matter what values are given: notation used. It is not true that the child is at least 8 years old and at least. It is not true that the child is at least 8 years old or at least 57 inches tall. F f (p q) (p (cid:1512) q) p q work (p (cid:1513) q) (cid:1513) (q p) T same f = f (if t then f) same (t and not f) F f: because we see both t and f, neither again (p q) (cid:1513) p p q work. F: all are true regardless of the situation, tautology ( p (cid:1513) q) (p (cid:1512) q) p q work. T t (nott or t) same (t and nott) T same f (nott or f) same (t and notf) F same t (notf or t) same (f and nott)
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