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Theorem is_sum_neg

Modification history

2019-04-10 17:14
src/topology/algebra/infinite_sum.lean
rename has_sum and is_sum to summable and has_sum (#912)
Deleted is_sum_negView on Github →
2017-09-05 22:38
topology/infinite_sum.lean
feat(topology/infinite_sum): add tsum (with ∑ notation) and has_sum; add lemmas for different algebraic structures
Added is_sum_negView on Github →