What kind of WFF is this? (Pv~Q) ~Q) = P V T FT TT TT TE TT F F FT T F FT TE F F a. contingent statement b. self-contradiction C. tautology d. consistent
What kind of WFF is this? (Pv~Q) ~Q) = P V T FT TT TT TE TT F F FT T F FT TE F F a. contingent statement b. self-contradiction C. tautology d. consistent
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Both questions please
Transcribed Image Text:QUESTION 28
What kind of WFF is this?
(P v~Q) = P
TT FI II
TT TF TT
V
FF FT IF
FT TE F F
a.
contingent statement
b. self-contradiction
O C.
tautology
Od. consistent
Transcribed Image Text:QUESTION 30
(Y•X)
~Y•~X
FTTT
FT FFT
T TFF
T FFT
FT FTF
TF FFT
TF TTF
T FFF
What is the logical relationship between these WFFS?
a. consistent and logically equivalent
Ob. consistent but not logically equivalent
OC. inconsistent and contradictory
Od. inconsistent but not contradictory
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