Theorem CategoryTheory.Subgroupoid.IsNormal.vertexSubgroup

Modification history

2023-06-12 15:16
Mathlib/CategoryTheory/Groupoid/Subgroupoid.lean
feat: port CategoryTheory.Groupoid.Subgroupoid (#4975)
Added CategoryTheory.Subgroupoid.IsNormal.vertexSubgroupView on Github →