Buskohl
Sunday, 18 August 2013
Rule of Replacement and Rule of Inference
Rule of Replacement and Rule of Inference
my question is,how I can solve this argument?can you pleas help me?
1.(V>~W).(X>Y) 2.(~W>Z).(Y>~A) 3.(Z>~B).(~A>C) 4.V.X/.'.~B.C
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