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Theorem equiv.perm.decompose_option_symm_of_none_apply

Modification history

2021-02-16 12:05

src/group_theory/perm/option.lean

feat(data/equiv): Add lemmas to reduce `@finset.univ (perm (fin n.succ)) _` (#5593) …

Added equiv.perm.decompose_option_symm_of_none_apply View on Github →