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Theorem category_theory.preadditive.comp_sum

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.comp_sumView on Github →
2020-06-25 07:39
src/category_theory/preadditive.lean
feat(category/preadditive): comp_sum (#3162) …
Added category_theory.preadditive.comp_sumView on Github →