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ltn_0_prod #8

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vblot opened this issue Jul 26, 2019 · 0 comments
Open

ltn_0_prod #8

vblot opened this issue Jul 26, 2019 · 0 comments

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@vblot
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vblot commented Jul 26, 2019

Lemma ltn_0_prod : forall s, all (ltn 0) s -> 0 < \prod_(n <- s) n.

ce lemme n'est pas utilisé (et se prouve trivialement à partir de ltn_0_prod_f et map_id)

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