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Step * of Lemma add_mono_wrt_lt

∀[a,b,n:ℤ].  uiff(a < b;a + n < b + n)
BY
{ Auto }

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Latex:

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Latex:
\mforall{}[a,b,n:\mBbbZ{}].    uiff(a  <  b;a  +  n  <  b  +  n)


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Latex:
Auto

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