Commit 2021-12-23 16:32 6e9b0112
View on Github →feat(linear_algebra/orientation): composing with linear equivs and determinant (#10737)
Add lemmas that composing an alternating map with a linear equiv using
comp_linear_map
, or composing a basis with a linear equiv using
basis.map
, produces the same orientation if and only if the
determinant of that linear equiv is positive.