CIS 194: Homework 8
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چکیده
We will begin by defining some logical connectives. The first logical connective is implication. Luckily, implication is already built in to the Haskell type system in the form of arrow types. The type p -> q is equivalent to the logical statement P → Q. We can now prove a very simple theorem called Modus Ponens. Modus Ponens states that if P implies Q and P is true, then Q is true. It is often written as:
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