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Theorem finset.sum_boole

Modification history

2023-10-30 15:07
src/algebra/big_operators/basic.lean
feat(data/{list,multiset,finset}/*): `attach` and `filter` lemmas (#18087) …
Modified finset.sum_booleView on Github →
2021-06-21 14:25
src/algebra/big_operators/basic.lean
feat(data/matrix/basic): generalize to non_assoc_semiring (#7974) …
Modified finset.sum_booleView on Github →
2020-03-27 21:37
src/algebra/big_operators.lean
feat(algebra/ring): generalize mul_ite (#2223) …
Added finset.sum_booleView on Github →