Mathlib v3 is deprecated. Go to Mathlib v4

Theorem same_ray.norm_sub

Modification history

2022-11-17 13:13
src/analysis/normed_space/ray.lean
refactor(analysis): change the symbol for norm to align with the unicode spec (#17575) …
Modified same_ray.norm_subView on Github →
2022-03-17 05:18
src/analysis/normed_space/ray.lean
refactor(linear_algebra/ray): redefine `same_ray` to allow zero vectors (#12618) …
Added same_ray.norm_subView on Github →