Mathlib v3 is deprecated. Go to Mathlib v4

Theorem AddGroup.epi_iff_surjective

Modification history

2022-08-09 09:08

src/algebra/category/Group/epi_mono.lean

feat(algebra/category/Group/epi_mono): (mono)epimorphisms and (in)surjections are the same in `(Add)(Comm)Group` (#15496)

Added AddGroup.epi_iff_surjective View on Github →