[Merged by Bors] - feat(linear_algebra/basic, group_theory/quotient_group, algebra/lie/quotient): ext lemmas for morphisms out of quotients #8641
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eric-wieser
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Nice work, the proofs clean up noticeably!
@ocfnash, could you check the Lie algebra parts?
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(in case you missed it @Vierkantor, Oliver commented at #8641 (comment) already) |
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…uotient): ext lemmas for morphisms out of quotients (#8641) This allows `ext` to see through quotients by subobjects of a type `A`, and apply ext lemmas specific to `A`.
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…uotient): ext lemmas for morphisms out of quotients (#8641) This allows `ext` to see through quotients by subobjects of a type `A`, and apply ext lemmas specific to `A`.
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This allows
extto see through quotients by subobjects of a typeA, and apply ext lemmas specific toA.