The sum of two even numbers is even. Using Direct proof method

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Let a and b be even numbers.

a = 2*c and b = 2*d for some integers c and d.

a+b = 2*c+2*d = 2*(c+d) = 2*k (where k is also some integer)

So, a+b is even

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Question ID: mtid-5-stid-8-sqid-3563-qpid-2262