Index - M
| mapAndUnzipM | Control.Monad.Free |
| mapM | Control.Monad.Free |
| mapM_ | Control.Monad.Free |
| mapW | Control.Comonad, Control.Comonad.Pointer, Control.Comonad.Supply, Control.Comonad.Context, Control.Comonad.Reader |
| meta | Control.Morphism.Meta |
| mfix | Control.Monad.Free |
| modifyC | Control.Comonad.Context |
| modifySupply | Control.Comonad.Supply |
| Monad | Control.Monad.Free |
| MonadFix | Control.Monad.Free |
| MonadPlus | Control.Monad.Free |
| Monoidal | Control.Bifunctor.Monoidal, Control.Bifunctor.Functor, Control.Bifunctor.Swap |
| mplus | Control.Monad.Free |
| msum | Control.Monad.Free |
| mzero | Control.Monad.Free |