[Merged by Bors] - chore(computability/language): golf some proofs #7301
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urkud
commented
Apr 21, 2021
urkud
commented
urkud
commented
Apr 21, 2021
| @@ -1000,6 +1000,18 @@ begin | |||
| { simp_rw [infi_ge_eq_infi_nat_add, ←nat.add_assoc], }, | |||
| end | |||
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| lemma sup_supr_nat_succ (u : ℕ → α) : u 0 ⊔ (⨆ i, u (i + 1)) = ⨆ i, u i := | |||
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It would be nice to have a tactic that generates this kind of lemma for any inductive type, with supr_and, supr_or, supr_sigma etc as particular cases.
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