How to prove $ 1 \mathrel | a $ for all $ a $.

Question

Prove $ 1 \mathrel | a $ for all $ a $.

So far I have $ a = 1 \times a $. I'm pretty sure that is my answer but I don't know how to get there.

What is your definition of $x$ divides $y$? – Azlif Sep 01 '21 at 20:23 — Azlif, Sep 01 '21 at 20:23

score -1 · Answer 1 · answered Sep 01 '21 at 20:29

-1

An integer x divides an integer y if you can write $y = xk$ with k an integer. You can write any integer y as $y = y1$ and therefore 1 divides all integers.

answered Sep 01 '21 at 20:29

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How to prove $ 1 \mathrel | a $ for all $ a $.

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