Question: Prove that for all n E Z if there exist x y E Z so that n x 2 y 2 then n is even

Prove that for all n E Z if there exist x

y E Z so that n x 2 y 2 then n

Prove that for all n E Z if there exist x y E Z so that n x 2 y 2 then n is even or 4 n 3 Thanks a lot for your time

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