Index - D
| D# | Base, Protolude |
| D1 | Protolude |
| Deadlock | |
| 1 (Data Constructor) | Protolude |
| 2 (Type/Class) | Protolude |
| decodeDoubleInteger | Base, Protolude |
| decodeFloat | Base, Protolude |
| decodeUtf8 | Protolude |
| decodeUtf8' | Protolude |
| decodeUtf8With | Protolude |
| deepseq | Protolude |
| denominator | Base, Protolude |
| Denormal | Protolude |
| die | Protolude |
| div | Base, Protolude |
| DivideByZero | Protolude |
| divideDouble | Base, Protolude |
| divideFloat | Base, Protolude |
| divInteger | Base, Protolude |
| divMod | Base, Protolude |
| divModInteger | Base, Protolude |
| divZeroError | Base, Protolude |
| Double | Base, Protolude |
| Double# | Base, Protolude |
| double2Float | Base, Protolude |
| double2Int | Base, Protolude |
| doubleFromInteger | Base, Protolude |
| Down | |
| 1 (Data Constructor) | Protolude |
| 2 (Type/Class) | Protolude |
| drop | Protolude |
| dropWhile | Protolude |
| Dual | |
| 1 (Data Constructor) | Protolude |
| 2 (Type/Class) | Protolude |
| dupChan | Protolude |