Commit 2021-09-28 11:33 c0dbe14d
View on Github →feat(linear_algebra/matrix/fpow): integer powers of matrices (#8683)
Since we have an inverse defined for matrices via nonsing_inv
, we provide a div_inv_monoid
instance for matrices.
The instance provides the ability to refer to integer power of matrices via the auto-generated gpow
.
This is done in a new file to allow selective use.
Many API lemmas are provided to facilitate usage of the new gpow
, many copied in form/content from
algebra/group_with_zero/power.lean
, which provides a similar API.