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Theorem
equiv.perm.sign_symm_trans_trans
Modification history
2021-01-14 15:25
src/group_theory/perm/sign.lean
chore(group_theory/perm/sign): trans and symm simp (#5735)
Modified
equiv.perm.sign_symm_trans_trans
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2018-10-17 13:50
group_theory/perm.lean
feat(group_theory/perm): swap_mul_swal / swap_swap_apply (by @kckennylau)
Modified
equiv.perm.sign_symm_trans_trans
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2018-09-19 11:24
group_theory/perm.lean
feat(group_theory/perm): sign_cycle and sign_bij (#347)
Added
equiv.perm.sign_symm_trans_trans
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