Index - M
| March | Hat.Time |
| MathSymbol | Hat.Data.Char |
| May | Hat.Time |
| Maybe | Hat.PreludeBasic, Hat.Prelude, Hat.Maybe, Hat.Data.Maybe |
| mkAbstract | Hat.Hat |
| mkApp1 | Hat.Hat |
| mkApp10 | Hat.Hat |
| mkApp11 | Hat.Hat |
| mkApp12 | Hat.Hat |
| mkApp13 | Hat.Hat |
| mkApp14 | Hat.Hat |
| mkApp15 | Hat.Hat |
| mkApp2 | Hat.Hat |
| mkApp3 | Hat.Hat |
| mkApp4 | Hat.Hat |
| mkApp5 | Hat.Hat |
| mkApp6 | Hat.Hat |
| mkApp7 | Hat.Hat |
| mkApp8 | Hat.Hat |
| mkApp9 | Hat.Hat |
| mkAtomRational | Hat.Hat |
| mkConstructor | Hat.Hat |
| mkConstructorWFields | Hat.Hat |
| mkDoLambda | Hat.Hat |
| mkLambda | Hat.Hat |
| mkModule | Hat.Hat |
| mkNoSrcPos | Hat.Hat |
| mkRoot | Hat.Hat |
| mkSrcPos | Hat.Hat |
| mkValueApp1 | Hat.Hat |
| mkValueApp10 | Hat.Hat |
| mkValueApp11 | Hat.Hat |
| mkValueApp12 | Hat.Hat |
| mkValueApp13 | Hat.Hat |
| mkValueApp14 | Hat.Hat |
| mkValueApp15 | Hat.Hat |
| mkValueApp2 | Hat.Hat |
| mkValueApp3 | Hat.Hat |
| mkValueApp4 | Hat.Hat |
| mkValueApp5 | Hat.Hat |
| mkValueApp6 | Hat.Hat |
| mkValueApp7 | Hat.Hat |
| mkValueApp8 | Hat.Hat |
| mkValueApp9 | Hat.Hat |
| mkValueUse | Hat.Hat |
| mkVariable | Hat.Hat |
| ModifierLetter | Hat.Data.Char |
| ModifierSymbol | Hat.Data.Char |
| Monad | Hat.PreludeBasic, Hat.Prelude, Hat.Monad, Hat.Control.Monad |
| MonadPlus | Hat.Monad, Hat.Control.Monad |
| Monday | Hat.Time |
| Month | Hat.Time |