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Theorem finset.sum_range_id_mul_two

Modification history

2020-07-22 10:18
src/algebra/big_operators/basic.lean
refactor(algebra/big_operators): split file, reduce imports (#3495) …
Modified finset.sum_range_id_mul_twoView on Github →
2020-05-17 02:07
src/algebra/big_operators.lean
feat(archive/100-theorems-list): Sum of the Reciprocals of the Triangular Numbers (#2692) …
Modified finset.sum_range_id_mul_twoView on Github →
2019-03-26 18:22
src/algebra/big_operators.lean
feat(algebra/big_operators): add Gauss' summation formula
Added finset.sum_range_id_mul_twoView on Github →