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Step * of Lemma gcd_is_divisor_1

∀a,b:ℤ.  (gcd(a;b) | a)
BY
{ Auto }

1
1. a : ℤ
2. b : ℤ
⊢ gcd(a;b) | a

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Latex:

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Latex:
\mforall{}a,b:\mBbbZ{}.    (gcd(a;b)  |  a)


By

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Latex:
Auto

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