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Theorem
category_theory.non_preadditive_abelian.Δ_σ
Modification history
2020-10-15 23:48
src/category_theory/abelian/non_preadditive.lean
chore(category_theory/limits/binary_products): fixup binary product lemmas (#4376) …
Deleted
category_theory.non_preadditive_abelian.Δ_σ
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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.Δ_σ
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