Question: There is a problem about Propositional Logic. Need a specific answer. The question is below Give an informal proof that 5 is irrational. (You may

There is a problem about Propositional Logic. Need a specific answer. The question is below

Give an informal proof that 5 is irrational. (You may use any facts you know from basic algebra

and arithmetic, and you may use the theorem that if a prime p divides the product a b then either p

divides a or p divides b.)

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