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Theorem
Equiv.Perm.mem_ofSign
Modification history
2024-12-11 06:10
Mathlib/GroupTheory/Perm/Sign.lean
feat(LinearAlgebra/Matrix): Prove `A * B = 1 ↔ B * A = 1` for square matrices over a commutative semiring (#19581) …
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Equiv.Perm.mem_ofSign
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