Theorem Finsupp.sum_sum_index'

Modification history

2026-05-17 20:27
Mathlib/Algebra/BigOperators/Finsupp/Basic.lean
chore: remove declarations deprecated between 2021-05-15 and 2025-11-15 (#39405) …
Deleted Finsupp.sum_sum_index'View on Github →
2024-08-02 06:24
Mathlib/Algebra/BigOperators/Finsupp.lean
chore: backports for leanprover/lean4#4814 (part 12) (#15396) …
Modified Finsupp.sum_sum_index'View on Github →
2024-07-31 10:11
Mathlib/Algebra/BigOperators/Finsupp.lean
start
Modified Finsupp.sum_sum_index'View on Github →
2024-05-27 08:32
Mathlib/Algebra/BigOperators/Finsupp.lean
chore: Use the new `∑ i ∈ s, f i` notation (#13209) …
Modified Finsupp.sum_sum_index'View on Github →
2023-01-30 08:00
Mathlib/Algebra/BigOperators/Finsupp.lean
feat: port Algebra.BigOperators.Finsupp (#1900) …
Added Finsupp.sum_sum_index'View on Github →