[Merged by Bors] - feat: basic results about preservation of kernels/cokernels #6279
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joelriou
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Hi @joelriou, have you seen the file CategoryTheory/Limits/Preserves/Shapes/Kernels.lean? I believe that there is some overlap between your results and the results in that file. I would suggest you move your results there and unify them with the existing ones.
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Thanks @TwoFX ! I will try to make the two approaches converge... |
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This PR shows basic results about the preservation of (limit) kernels forks by functors which preserve zero morphisms.
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This PR shows basic results about the preservation of (limit) kernels forks by functors which preserve zero morphisms.
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This PR shows basic results about the preservation of (limit) kernels forks by functors which preserve zero morphisms.
(Note: This is not completely straightforward because the
0morphism is mapped toG.map 0, which is equal to0, although not definitionally.)