Mathlib v3 is deprecated. Go to Mathlib v4

Def equiv.perm.sum_congr_hom

Modification history

2020-12-15 10:30
src/group_theory/perm/basic.lean
feat(group_theory/perm/basic): Bundle sigma_congr_right and sum_congr into monoid_homs (#5301) …
Added equiv.perm.sum_congr_homView on Github →