Develop the `List.sum`, `List.prod` and related APIs
#1 465 ouverte le 16 oct. 2025
Métriques du dépôt
- Stars
- (406 étoiles)
- Métriques de merge PR
- (Merge moyen 7j 15h) (26 PRs mergées en 30 j)
Description
Mathlib's BigOperators library is well-developed, sophisticated and works extremely well. There is however a need for a less sophisticated intermediate library built directly on Std's basic classes for associativity, commutativity, identities. Just downstreaming Mathlib's API is not possible since many features don't fit in Batteries' focus on programming and formal verification.
We need a plan for this. This plan should balance low-level and high-level features, enhancing Std's basic API in a manner compatible with Mathlib's API. This plan should strengthen both Std and Mathlib, while staying within the scope of Batteries.