SOLUTION: P∙ Q R⊃ ~Q / ~R∨ ~P
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Question 1104306
:
P∙ Q
R⊃ ~Q
/ ~R∨ ~P
Answer by
jim_thompson5910(35256)
(
Show Source
):
You can
put this solution on YOUR website!
I'm using the ampersand in place of the dot
Also, I'm using the arrow notation instead of a horsehoe
Number
Statement
Lines Used
Reason
1
P & Q
2
R -> ~Q
:.
~R v ~P
3
Q & P
1
Commutation
4
Q
3
Simplification
5
~~Q
4
Double Negation
6
~R
2,5
Modus Tollens
7
~R v ~P
6
Addition