Step
*
of Lemma
iseg_product-positive
∀[i,j:ℕ]. (0 < iseg_product(i;j)) supposing ((i ≤ j) and 0 < i)
BY
{ (Auto THEN Unfold `iseg_product` 0 THEN BLemma `combinations-positive` THEN Auto') }
Latex:
Latex:
\mforall{}[i,j:\mBbbN{}]. (0 < iseg\_product(i;j)) supposing ((i \mleq{} j) and 0 < i)
By
Latex:
(Auto THEN Unfold `iseg\_product` 0 THEN BLemma `combinations-positive` THEN Auto')
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