Prove that if $x$ is a multiple of both $a$ and $b$, then $x$ is also a multiple of $\operatorname{lcm}(a,b)$.
I couldn’t write a proper conditional logic statement. Can anyone help me?
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What's your definition of $\operatorname{lcm}(a,b)$? – azif00 Jul 31 '19 at 01:45
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@Azif00 the least common multiple from the set of multiples of a and b – myname Jul 31 '19 at 04:09