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Theorem equiv.perm.symm_mul

Modification history

2021-11-13 14:24
src/group_theory/perm/basic.lean
chore(data/equiv/*): rename `trans_symm` and `symm_trans` to `self_trans_symm` and `symm_trans_self`. (#10309) …
Modified equiv.perm.symm_mulView on Github →
2021-01-07 10:05
src/group_theory/perm/basic.lean
chore(group_theory/perm/basic): Add some missing simp lemmas (#5614) …
Added equiv.perm.symm_mulView on Github →