Answer:The proposition p is called hypothesis or antecedent, and the proposition q is the conclusion or consequent. Note that p → q is true always except when p is true and q is false.p only if q means "if not q then not p, " or equivalently, "if p then q." Biconditional (iff): The biconditional of p and q is "p if, and only if, q" and is denoted p q. It is true if both p and q have the same truth values and is false if p and q have opposite truth values.
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