Theorem Finset.sum_sym2_filter_not_isDiag

Modification history

2025-07-05 03:31
Mathlib/Algebra/BigOperators/Sym.lean
chore(Algebra/BigOperators): rename variables away from greek letters (#26521) …
Modified Finset.sum_sym2_filter_not_isDiagView on Github →
2025-03-05 14:00
Mathlib/Algebra/BigOperators/Sym.lean
feat(Algebra/BigOperators/Sym): add sum_range_count_of_mem_sym (#22391)
Modified Finset.sum_sym2_filter_not_isDiagView on Github →
2024-11-05 09:15
Mathlib/Algebra/BigOperators/Group/Finset.lean
chore(Algebra/BigOperators): don't import `Sym` in the definition of big operators (#18650) …
Modified Finset.sum_sym2_filter_not_isDiagView on Github →
2024-07-20 11:05
Mathlib/Algebra/BigOperators/Group/Finset.lean
feat: `BilinForm.toQuadraticForm` is surjective in free modules (#14292) …
Added Finset.sum_sym2_filter_not_isDiagView on Github →