Theorem Finsupp.erase_idem

Modification history

2025-01-13 13:56
Mathlib/Data/Finsupp/Defs.lean
chore(Data/Finsupp): split off material on `single`, `update`, `erase` (#19087) …
Modified Finsupp.erase_idemView on Github →
2024-01-01 22:36
Mathlib/Data/Finsupp/Defs.lean
feat: missing lemmas about `Finsupp.update` (#9316)
Added Finsupp.erase_idemView on Github →