| Symbol | Specification | Kind | Type |
|---|---|---|---|
| . + . | nat-basic | f | nat × nat → nat |
| . +1 | nat-basic | f | nat → nat |
| . - . | nat | pf | nat × nat → nat with λ n, m. n ≥ m |
| . -1 | nat-basic | pf | nat → nat with λ n. n ≠ 0 |
| . .fid | file-handle | f | file-handle → fid |
| . .fid:= . | file-handle | f | file-handle × fid → file-handle |
| . .mode | file-handle | f | file-handle → file-mode |
| . .mode:= . | file-handle | f | file-handle × file-mode → file-handle |
| . .pos | file-handle | f | file-handle → nat |
| . .pos:= . | file-handle | f | file-handle × nat → file-handle |
| . < . | nat-basic | p | nat × nat |
| . > . | nat | p | nat × nat |
| . ≤ . | nat | p | nat × nat |
| . ≥ . | nat | p | nat × nat |
| MODE_R | file-mode | c | file-mode |
| MODE_RW | file-mode | c | file-mode |
| MODE_W | file-mode | c | file-mode |
| fh | file-handle | v | file-handle |
| fid | file-id | s | |
| fid | file-id | v | fid |
| fid0 | file-handle | v | fid |
| file-handle | file-handle | s | |
| file-mode | file-mode | s | |
| m | nat-basic | v | nat |
| m0 | file-handle | v | nat |
| mkfh | file-handle | f | fid × file-mode × nat → file-handle |
| mode | file-mode | v | file-mode |
| mode0 | file-handle | v | file-mode |
| n | nat-basic | v | nat |
| n0 | nat-basic | v | nat |
| n1 | nat-basic | v | nat |
| nat | nat-basic | s |