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category_theory.non_preadditive_abelian.zero_kernel_of_cancel_zero
Modification history
2022-03-24 05:18
src/category_theory/abelian/non_preadditive.lean
refactor(category_theory/abelian): trivial generalisations (#12897) …
Deleted
category_theory.non_preadditive_abelian.zero_kernel_of_cancel_zero
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2020-07-03 04:28
src/category_theory/abelian/non_preadditive.lean
feat(category_theory/abelian): every abelian category is preadditive (#3247)
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category_theory.non_preadditive_abelian.zero_kernel_of_cancel_zero
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