Theorem MonoidHom.isOpenQuotientMap_iff_isQuotientMap

Modification history

2026-08-24 07:44
Mathlib/Topology/Algebra/Group/Basic.lean
refactor(Topology/Algebra/Group): split long file Basic.lean (#43010) …
Modified MonoidHom.isOpenQuotientMap_iff_isQuotientMapView on Github →
2026-06-24 10:56
Mathlib/Topology/Algebra/Group/Basic.lean
feat: API and proof of `isStrictMap_prodMap` (#38937)
Added MonoidHom.isOpenQuotientMap_iff_isQuotientMapView on Github →