Theorem Finset.prod_map_val

Modification history

2024-04-30 14:24

Mathlib/Algebra/BigOperators/Basic.lean

feat: `∑ x ∈ s, f x` to replace `∑ x in s, f x` in the future (#6795) …

Modified Finset.prod_map_val View on Github →

2023-11-08 22:44

Mathlib/Algebra/BigOperators/Basic.lean

feat: `attach` and `filter` lemmas (#1470) …

Added Finset.prod_map_val View on Github →