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Step * of Lemma left_mul_subtract_distrib

∀[a,b,c:ℤ].  ((c * (a - b)) = ((c * a) - c * b) ∈ ℤ)
BY
{ Auto }

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Latex:

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Latex:
\mforall{}[a,b,c:\mBbbZ{}].    ((c  *  (a  -  b))  =  ((c  *  a)  -  c  *  b))


By

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Latex:
Auto

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