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Step * of Lemma combinations_aux_wf_int

∀[n:ℕ]. ∀[b,m:ℤ].  (combinations_aux(b;n;m) ∈ ℤ)
BY
{ (InductionOnNat THEN RecUnfold `combinations_aux` 0 THEN Reduce 0 THEN Auto)⋅ }

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Latex:

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Latex:
\mforall{}[n:\mBbbN{}].  \mforall{}[b,m:\mBbbZ{}].    (combinations\_aux(b;n;m)  \mmember{}  \mBbbZ{})


By

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Latex:
(InductionOnNat  THEN  RecUnfold  `combinations\_aux`  0  THEN  Reduce  0  THEN  Auto)\mcdot{}

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