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Def equiv.perm.subtype_perm

Modification history

2022-12-11 13:46
src/group_theory/perm/basic.lean
feat(group_theory/perm/basic): `subtype_perm` is a monoid hom (#17816) …
Modified equiv.perm.subtype_permView on Github →
2021-02-02 14:44
src/group_theory/perm/basic.lean
refactor(group_theory/perm): move perm.subtype_perm to basic (#6005) …
Modified equiv.perm.subtype_permView on Github →
2018-09-19 11:24
group_theory/perm.lean
feat(group_theory/perm): sign_cycle and sign_bij (#347)
Added equiv.perm.subtype_permView on Github →