Theorem Finset.sum_multiset_singleton

Modification history

2025-07-05 03:31
Mathlib/Algebra/BigOperators/Group/Finset/Defs.lean
chore(Algebra/BigOperators): rename variables away from greek letters (#26521) …
Modified Finset.sum_multiset_singletonView on Github →
2025-01-30 19:51
Mathlib/Algebra/BigOperators/Group/Finset/Defs.lean
chore: deprecate the `∑ x in s, f x` notation (#21253) …
Modified Finset.sum_multiset_singletonView on Github →
2025-01-13 05:50
Mathlib/Algebra/BigOperators/Group/Finset/Basic.lean
chore: split `Algebra/BigOperators/Group/{Multiset,Finset}` (#20629) …
Modified Finset.sum_multiset_singletonView on Github →
2023-01-18 12:21
Mathlib/Algebra/BigOperators/Basic.lean
feat: port Algebra.BigOperators.Basic (#1628)
Added Finset.sum_multiset_singletonView on Github →