Theorem Finset.prod_eq_one_iff'
Modification history
2025-04-01 19:01
Mathlib/Algebra/Order/BigOperators/Group/Finset.lean
refactor: generalise `∏ i ∈ s, f i = 1 ↔ ∀ i ∈ s, f i = 1` to monoids with a single unit (#23483) …
Deleted Finset.prod_eq_one_iff'View on Github →2024-05-27 08:32
Mathlib/Algebra/Order/BigOperators/Group/Finset.lean
chore: Use the new `∑ i ∈ s, f i` notation (#13209) …
Modified Finset.prod_eq_one_iff'View on Github →