Theorem Finsupp.update_eq_single_add_erase

Modification history

2025-08-07 13:48
Mathlib/Algebra/Group/Finsupp.lean
chore: move algebraic properties of `Finsupp.single` to `Algebra.Group.Finsupp` (#28073) …
Modified Finsupp.update_eq_single_add_eraseView on Github →
2025-01-13 13:56
Mathlib/Data/Finsupp/Defs.lean
chore(Data/Finsupp): split off material on `single`, `update`, `erase` (#19087) …
Modified Finsupp.update_eq_single_add_eraseView on Github →
2023-01-27 13:32
Mathlib/Data/Finsupp/Defs.lean
feat: port Data.Finsupp.Defs (#1807)
Added Finsupp.update_eq_single_add_eraseView on Github →