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Theorem category_theory.preadditive.neg_comp_neg

Modification history

2021-05-13 13:44
src/category_theory/preadditive/default.lean
feat(category_theory/preadditive/functor_category): preadditive instance for C \func D (#7533)
Modified category_theory.preadditive.neg_comp_negView on Github →
2020-05-27 13:41
src/category_theory/preadditive.lean
feat(category_theory/abelian): abelian categories (#2817) …
Modified category_theory.preadditive.neg_comp_negView on Github →
2020-05-13 10:27
src/category_theory/preadditive.lean
feat(category_theory): preadditive categories (#2663) …
Added category_theory.preadditive.neg_comp_negView on Github →