Saturday, August 22, 2015

Classical Implicational Calculus (CIC)

Lk1, Lk2, Sub, and MP form the basis for CIC. Notice Lk3 uses ¬ but Lk1 and Lk2 do not use ¬. Since, CIC does not use Lk3, its theorems are variations on the transitivity of ⇒. 


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