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Theorem equiv.perm.sign_sum_congr

Modification history

2021-01-07 10:05
src/group_theory/perm/sign.lean
chore(group_theory/perm/sign): remove classical for sign congr simp lemmas (#5622) …
Modified equiv.perm.sign_sum_congrView on Github →
2020-12-10 13:58
src/group_theory/perm/sign.lean
feat(group_theory/perm/sign): Add sign_sum_congr (#5266)
Added equiv.perm.sign_sum_congrView on Github →