Mathlib v3 is deprecated. Go to Mathlib v4

Theorem norm_triangle_sum

Modification history

2019-11-24 10:11
src/analysis/normed_space/basic.lean
feat(analysis/normed_space): prove more lemmas, rename some old lemmas (#1733) …
Deleted norm_triangle_sumView on Github →
2019-03-26 18:22
src/analysis/normed_space/basic.lean
feat(data/multiset,data/finset): add multiset./finset.le_sum_of_additive
Modified norm_triangle_sumView on Github →
2019-02-12 20:15
src/analysis/normed_space/basic.lean
refactor(analysis/specific_limits): generalize has_sum_of_absolute_convergence to normed_groups
Added norm_triangle_sumView on Github →