| 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 |
| . .pnum | ebaentry | pf | ebaentry → nat with λ ebae. ebae ≠ unmapped |
| . .pnum:= . | ebaentry | pf | ebaentry × nat → ebaentry with λ ebae, m. ebae ≠ unmapped |
| . < . | nat-basic | p | nat × nat |
| . > . | nat | p | nat × nat |
| . ≤ . | nat | p | nat × nat |
| . ≥ . | nat | p | nat × nat |
| ⌜ . ⌝ | ebaentry | f | nat → ebaentry |
| ebae | ebaentry | v | ebaentry |
| ebae0 | ebaentry | v | ebaentry |
| ebae1 | ebaentry | v | ebaentry |
| ebae2 | ebaentry | v | ebaentry |
| ebaentry | ebaentry | s | |
| m | nat-basic | v | nat |
| m0 | ebaentry | v | nat |
| n | nat-basic | v | nat |
| n0 | nat-basic | v | nat |
| n1 | nat-basic | v | nat |
| nat | nat-basic | s | |
| unmapped | ebaentry | c | ebaentry |