Determine whether these biconditionals are true or false. a) 2 + 2 = 4 if and only if 1 + 1 = 2. b) 1 + 1 = 2 if and only if 2 + 3 = 4. c) 1 + 1 = 3 if and only if monkeys can fly. d) 0 > 1 if and only if 2 > 1.

Q: Provide a proof by contradiction of the statement below.

A:

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A: And

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Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.