Mathlib v3 is deprecated. Go to Mathlib v4

Theorem matrix.subsingleton_of_empty_left

Modification history

2022-08-16 10:36
src/data/matrix/basic.lean
chore(*): restore `subsingleton` instances and remove hacks (#16046) …
Deleted matrix.subsingleton_of_empty_leftView on Github →
2021-07-01 16:37
src/data/matrix/basic.lean
feat(logic/is_empty): add some simp lemmas and unique instances (#7832) …
Modified matrix.subsingleton_of_empty_leftView on Github →
2020-08-29 17:36
src/data/matrix/basic.lean
feat(linear_algebra/char_poly/coeff,*): prerequisites for friendship theorem (#3953) …
Added matrix.subsingleton_of_empty_leftView on Github →