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Theorem equiv.perm.perm_inv_on_of_perm_on_finset

Modification history

2021-02-09 11:14
src/group_theory/perm/sign.lean
feat(group_theory/perm/sign): induced permutation on a subtype that is a fintype (#5706) …
Added equiv.perm.perm_inv_on_of_perm_on_finsetView on Github →