Mathlib Changelog
v4
Changelog
About
Github
Theorem
DirectSum.IsInternal.ofBijective_coeLinearMap_same
Modification history
2023-11-16 10:23
Mathlib/Algebra/DirectSum/Module.lean
feat: the trace of a direct sum is the sum of the traces (#8369)
Added
DirectSum.IsInternal.ofBijective_coeLinearMap_same
View on Github →