Mathlib v3 is deprecated. Go to Mathlib v4

Theorem finsupp.prod_filter_index

Modification history

2022-04-16 19:28

src/data/finsupp/basic.lean

feat(data/finsupp/basic): add a few lemmas, mostly about `finsupp.filter` (#13457)

Added finsupp.prod_filter_index View on Github →