| M1 | |
| 1 (Type/Class) | Protolude |
| 2 (Data Constructor) | Protolude |
| magnitude | Protolude |
| many | Protolude |
| Map | Protolude |
| map | Protolude |
| mapAccumL | Protolude |
| mapAccumR | Protolude |
| mapAndUnzipM | Protolude.Monad, Protolude |
| mapExcept | Protolude |
| mapException | Protolude |
| mapExceptT | Protolude |
| mapM | Protolude |
| mapMaybe | Protolude |
| mapM_ | Protolude |
| mappend | Protolude |
| mask | Protolude |
| MaskedInterruptible | Protolude |
| MaskedUninterruptible | Protolude |
| MaskingState | Protolude |
| mask_ | Protolude |
| max | Protolude |
| maxBound | Protolude.Base, Protolude |
| maximum | Protolude |
| maximumBy | Protolude |
| maximumDef | Protolude.Safe, Protolude |
| maximumMay | Protolude.Safe, Protolude |
| maxInt | Protolude.Base, Protolude |
| Maybe | Protolude |
| maybe | Protolude |
| maybeEmpty | Protolude.Either, Protolude |
| maybeToEither | Protolude.Either, Protolude |
| maybeToLeft | Protolude.Either, Protolude |
| maybeToList | Protolude |
| maybeToRight | Protolude.Either, Protolude |
| mconcat | Protolude |
| mempty | Protolude |
| Meta | Protolude |
| MetaCons | Protolude |
| MetaData | Protolude |
| MetaSel | Protolude |
| mfilter | Protolude.Monad, Protolude |
| min | Protolude |
| minBound | Protolude.Base, Protolude |
| minimum | Protolude |
| minimumBy | Protolude |
| minimumDef | Protolude.Safe, Protolude |
| minimumMay | Protolude.Safe, Protolude |
| minInt | Protolude.Base, Protolude |
| mkPolar | Protolude |
| mkWeakMVar | Protolude |
| mkWeakThreadId | Protolude |
| mod | Protolude.Base, Protolude |
| modify | Protolude |
| modifyMVar | Protolude |
| modifyMVarMasked | Protolude |
| modifyMVarMasked_ | Protolude |
| modifyMVar_ | Protolude |
| moduleName | Protolude |
| Monad | Protolude.Monad, Protolude |
| MonadError | Protolude |
| MonadIO | Protolude |
| MonadPlus | Protolude.Monad, Protolude |
| MonadReader | Protolude |
| MonadState | Protolude |
| Monoid | Protolude |
| mplus | Protolude.Monad, Protolude |
| msum | Protolude |
| mtimesDefault | Protolude |
| MVar | Protolude |
| myThreadId | Protolude |
| mzero | Protolude.Monad, Protolude |