Theorem Finset.sum_range_id_mul_two

Modification history

2024-05-27 08:32
Mathlib/Algebra/BigOperators/Intervals.lean
chore: Use the new `∑ i ∈ s, f i` notation (#13209) …
Modified Finset.sum_range_id_mul_twoView on Github →
2023-01-28 21:25
Mathlib/Algebra/BigOperators/Intervals.lean
feat: port Algebra.BigOperators.Intervals (#1901)
Added Finset.sum_range_id_mul_twoView on Github →