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Sym2.filter_image_mk_isDiag
Modification history
2023-12-27 05:26
Mathlib/Data/Sym/Sym2.lean
refactor: remove `Sym2`'s global `Prod` setoid instance, use `s(x, y)` notation for unordered pairs (#8729) …
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Sym2.filter_image_mk_isDiag
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