Index - P
| para | RecursionSchemes |
| para' | RecursionSchemes |
| para'' | RecursionSchemes |
| penultimate | MyPenultimate |
| perms1 | Permutation |
| perms2 | Permutation |
| perms3 | Permutation |
| picks | Permutation |
| Plus | Expr |
| pop | Stack |
| position | HarmonicOscillation |
| Purple | Colours |
| push | Stack |
| put | MyState |
| pythagorasCont | Cps |