Let x, y, d, be elements of Z (integers) and let z = x+y. Prove: If d divides any two of x, y, z then d divides the third.

How do you prove this? I know it's true, but not how to prove it.

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- May 12th 2009, 08:41 PMvassagodivision question
Let x, y, d, be elements of Z (integers) and let z = x+y. Prove: If d divides any two of x, y, z then d divides the third.

How do you prove this? I know it's true, but not how to prove it. - May 12th 2009, 08:57 PMTheEmptySet