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A library encoding monoidal functors and related structures in Haskell.

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Special thanks to @isovector for helping write this.

Some examples do work: ``` > cabal exec -- doctest -isrc -XLambdaCase -XUndecidableInstances -XFunctionalDependencies src/Control/Category/Cartesian.hs Warning: ignoring unrecognised input `.' Examples: 25 Tried: 25 Errors: 0 Failures: 0 ``` However,...

For example: ``` deriving via FromApplicative (Proxy :: Type -> Type) instance Semigroupal (->) (,) (,) (Proxy :: Type -> Type) deriving via FromDivisible (Proxy :: Type -> Type) instance...

There are many laws related to the classes in this library. It would be great to use QuickCheck to test them.

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