mathlib
922ecb07 - chore(group_theory/perm/sign): speed up sign_aux_swap_zero_one proof (#6128)

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4 years ago
chore(group_theory/perm/sign): speed up sign_aux_swap_zero_one proof (#6128) Co-authored-by: Yakov Pechersky <pechersky@users.noreply.github.com>
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