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[Merged by Bors] - chore: add a Repr for Sym2 #14251

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[Merged by Bors] - chore: add a Repr for Sym2 #14251

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chore: add a `Repr` for `Sym2`
eric-wieser Jun 29, 2024
57a51a7
Update Mathlib/Data/Sym/Sym2.lean
eric-wieser Jul 3, 2024
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4 changes: 4 additions & 0 deletions Mathlib/Data/Sym/Sym2.lean
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Expand Up @@ -764,4 +764,8 @@ instance [IsEmpty α] : IsEmpty (Sym2 α) :=
instance [Nontrivial α] : Nontrivial (Sym2 α) :=
diag_injective.nontrivial

-- TODO: use a sort order if available, gh-18166
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unsafe instance [Repr α] : Repr (Sym2 α) where
reprPrec s _ := f!"s({repr s.unquot.1}, {repr s.unquot.2})"

end Sym2
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