Using Laws a.) [p^ (p>q1oq is of equivalencier, that: prove a tautology b) (P→r)v (q+r) ³ (pvq) is / is not logically equivalent c.) (P+q) = (p+q) ^ ( q→P)

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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lising laws of equivalencier, prove that:
a tautology
a.) [p^ (p>9]+q is
L) (P+r)v (q+r) ³ (pvq) is / is not logically
equivalent
c.) (P+q) = (p→q) ^ ( 2 →P)
d) ¬P→ (9+r) = (pvr)
Transcribed Image Text:lising laws of equivalencier, prove that: a tautology a.) [p^ (p>9]+q is L) (P+r)v (q+r) ³ (pvq) is / is not logically equivalent c.) (P+q) = (p→q) ^ ( 2 →P) d) ¬P→ (9+r) = (pvr)
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