Mathlib v3 is deprecated. Go to Mathlib v4

Theorem open_subgroup.coe_coe_subgroup

Modification history

2023-03-15 14:32

src/topology/algebra/open_subgroup.lean

refactor(topology/algebra/open_subgroup): use `set_like` (#18585)

Added open_subgroup.coe_coe_subgroup View on Github →