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                        feat(category_theory/preadditive): inclusion functor from left exact functors to additive functors
This PR/issue depends on:
- ~~leanprover-community/mathlib#12014~~
 - ~~leanprover-community/mathlib#12330~~
 - ~~leanprover-community/mathlib#12336~~ By Dependent Issues (🤖). Happy coding!
 
Thanks :tada:
bors merge
bors merge p=3
Pull request successfully merged into master.
Build succeeded: