Theorem Sym2.reflexive_iff_diagSet_subset_fromRel

Modification history

2025-11-29 02:24
Mathlib/Data/Sym/Sym2.lean
feat(Data/Sym/Sym2): add `Sym2.diagSet` (#30559) …
Added Sym2.reflexive_iff_diagSet_subset_fromRelView on Github →