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[Merged by Bors] - feat: When a \ b = b \ a
#9109
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and other simple order lemmas
lemma sup'_univ_eq_csupr (f : ι → α) : univ.sup' univ_nonempty f = ⨆ i, f i := by | ||
simp [sup'_eq_csSup_image, iSup] | ||
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lemma inf'_univ_eq_cinfi (f : ι → α) : univ.inf' univ_nonempty f = ⨅ i, f i := by | ||
simp [inf'_eq_csInf_image, iInf] |
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I'm really quite surprise we don't already have these.
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So am I!
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Thanks 🎉
bors merge
and other simple order lemmas From LeanAPAP and LeanCamCombi
Pull request successfully merged into master. Build succeeded: |
a \ b = b \ a
a \ b = b \ a
and other simple order lemmas
From LeanAPAP and LeanCamCombi