Give a formal proof for the following tautology by using the CP rule.
(B →C) ^ A ^ B →A ^ C
Solution for the problem is provided below, please comment if any doubts:
Prove using conditional proof (CP) rules is following the procedure From A, derive B, then A→B.
Here A=> (B →C) ^ A ^ B
And B => A ^ C
So from A we need to derive B to prove the tautology
QED :1-5 CP
Hence prove the tautology using CP rule
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