| Symbol | Specification | Kind | Type |
|---|---|---|---|
| # . | set-basic | f | set → nat |
| . + . | nat-basic2 | f | nat × nat → nat |
| . ++ . | nat-set | f | set × nat → set |
| . +1 | nat-basic1 | f | nat → nat |
| . - . | nat | f | nat × nat → nat |
| . -- . | nat-set | f | set × nat → set |
| . -1 | nat-basic1 | f | nat → nat |
| . .butmax | oset | f | set → set |
| . .butmin | oset | f | set → set |
| . .max | nat-set | f | set → nat |
| . .min | nat-set | f | set → nat |
| . < . | nat-set | p | set × nat |
| . < . | nat-set | p | nat × set |
| . < . | nat-basic1 | p | nat × nat |
| . > . | nat | p | nat × nat |
| . \ . | set-union | f | set × set → set |
| . ≤ . | nat | p | nat × nat |
| . ≥ . | nat | p | nat × nat |
| . ∈ . | nat-set | p | nat × set |
| . ∪ . | set-union | f | set × set → set |
| . ∩ . | set-union | f | set × set → set |
| . ⊆ . | set-basic | p | set × set |
| { . } | nat-set | f | nat → set |
| ∅ | set-basic | c | set |
| m | nat-basic2 | v | nat |
| n | nat-basic1 | v | nat |
| n0 | nat-basic1 | v | nat |
| n1 | nat-basic1 | v | nat |
| n2 | nat-set | v | nat |
| n3 | nat-set | v | nat |
| n4 | nat-set | v | nat |
| nat | nat-basic1 | s | |
| s | set-basic | v | set |
| s0 | set-basic | v | set |
| s1 | set-basic | v | set |
| s2 | set-basic | v | set |
| set | set-basic | s |