Commit 2021-09-30 16:11 118e809b
View on Github →refactor(algebra/module/linear_map): Move elementwise structure from linear_algebra/basic (#9331)
This helps reduce the size of linear_algebra/basic, and by virtue of being a smaller file makes it easier to spot typeclasses which can be relaxed.
As an example, linear_map.endomorphism_ring now requires only semiring R not ring R.
Having instances available as early as possible is generally good, as otherwise it is hard to even state things elsewhere.