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anti_ltn #6

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

anti_ltn #6

vblot opened this issue Jul 26, 2019 · 0 comments

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@vblot
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vblot commented Jul 26, 2019

Lemma anti_ltn : antisymmetric ltn.

Même si c'est formellement vrai, c'est très troublant de lire que < est antisymmétrique. Il me semble que tu utilises ce lemme uniquement avec sorted_primes. Il serait plus naturel de montrer :

sorted_primes_leq : forall n : nat, sorted (T:=nat_eqType) leq (primes n)

ou encore :

sorted_leq_ltn : forall s, sorted ltn s -> sorted leq s

qui se prouve facilement avec ltn_sorted_uniq_leq.

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