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If A = {1, 2, 3, 4} and B= {1, 2, 3, 4, ...

If A = {1, 2, 3, 4} and B= {1, 2, 3, 4, 5, 6} are two sets and function `F: A to B` is defined by `f(x) = x+2, AA x in A`, then prove that the function is one-one and into.

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