Theorem Finsupp.mapRange_bijective

Modification history

2026-07-16 14:39
Mathlib/Data/Finsupp/Defs.lean
feat(LinearAlgebra/Contraction): bijectivity of `dualTensorHom` + generalize to `CommSemiring` (#40297) …
Added Finsupp.mapRange_bijectiveView on Github →