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[Merged by Bors] - feat(linear_algebra/trace): trace of projection maps #14165
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Co-authored-by: Eric Wieser <wieser.eric@gmail.com>
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Can you add the same statement for a general ring, assuming the relevant modules are free? (Then this one, that we still want, can be proved as a special case). Thanks! |
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Thanks! bors d+ |
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This is proved under the `field` assumption instead of the finite free module assumptions generally used to talk about the trace because we need the submodules `p` and `f.ker` to also be free and finite. - [x] depends on: #13872 Co-authored-by: antoinelab01 <66086247+antoinelab01@users.noreply.github.com>
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Pull request successfully merged into master. Build succeeded: |
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This is proved under the
fieldassumption instead of the finite free module assumptions generally used to talk about the trace because we need the submodulespandf.kerto also be free and finite.