| Symbol | Specification | Kind | Type |
|---|---|---|---|
| # . | list-data | f | list → nat |
| . ' | list | f | elem → list |
| . + . | nat-basic | f | nat × nat → nat |
| . + . | list-data | f | elem × list → list |
| . + . | list | f | list × list → list |
| . + . | list | f | list × elem → list |
| . ++ . | list-dup | f | list × elem → list |
| . +1 | nat-basic | f | nat → nat |
| . +2 . | list | f | elem × elem → list |
| . - . | nat | pf | nat × nat → nat with λ n, m. n ≥ m |
| . -1 | nat-basic | pf | nat → nat with λ n. n ≠ 0 |
| . .head | list-data | pf | list → elem with λ x. x ≠ [] |
| . .tail | list-data | pf | list → list with λ x. x ≠ [] |
| . < . | nat-basic | p | nat × nat |
| . < . | list-data | p | list × list |
| . > . | nat | p | nat × nat |
| . ∈ . | list | p | elem × list |
| . ≤ . | nat | p | nat × nat |
| . ≥ . | nat | p | nat × nat |
| [] | list-data | c | list |
| a | list-dup | v | elem |
| b | list-dup | v | elem |
| c | list-dup | v | elem |
| disj | list-dup | p | list × list |
| dups | list-dup | p | list |
| elem | elem | s | |
| list | list-data | s | |
| nat | nat-basic | s | |
| rmdup | list-dup | f | list → list |
| x | list-dup | v | list |
| y | list-dup | v | list |
| z | list-dup | v | list |