Mathlib v3 is deprecated. Go to Mathlib v4

Theorem open_subgroup.comap_comap

Modification history

2021-03-14 00:42
src/topology/algebra/open_subgroup.lean
feat(topology/algebra/nonarchimedean): added nonarchimedean groups and rings (#6551) …
Added open_subgroup.comap_comapView on Github →