a) 1) The statement (p^q) vr⇒-pvr is not a tautology. A counter-example is p: T; q: F; r: T. p: T; q: F; r: F. p: F; q: T; r: T. p: F; q: F; r: F. 7

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 16CT: Let P represent any statement. Classify as true or false. a P and P b P or P
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1) The statement ¬(p^q) vr⇒¬p vr is not a tautology. A counter-example is
p: T; q: F; r: T.
p: T; q: F; r: F.
p: F; q: T; r: T.
p: F; q: F; r: F.
Transcribed Image Text:1) The statement ¬(p^q) vr⇒¬p vr is not a tautology. A counter-example is p: T; q: F; r: T. p: T; q: F; r: F. p: F; q: T; r: T. p: F; q: F; r: F.
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