Mathlib v3 is deprecated. Go to Mathlib v4

Theorem finset.nat_cast_card_filter

Modification history

2023-10-30 15:07
src/algebra/big_operators/basic.lean
feat(data/{list,multiset,finset}/*): `attach` and `filter` lemmas (#18087) …
Added finset.nat_cast_card_filterView on Github →