| Symbol | Specification | Kind | Type |
|---|
| # . | string | f | string → nat |
| . % . | nat-div | pf | nat × nat → nat with λ n, m. m ≠ 0 |
| . ' | string | f | char → string |
| . * . | nat-mult | f | nat × nat → nat |
| . + . | nat-basic | f | nat × nat → nat |
| . + . | string | f | char × string → string |
| . + . | string | f | string × char → string |
| . + . | string | f | string × string → string |
| . ++ . | string | f | string × char → string |
| . +1 | nat-basic | f | nat → nat |
| . +2 . | string | f | char × char → string |
| . - . | nat | pf | nat × nat → nat with λ n, m. n ≥ m |
| . -1 | nat-basic | pf | nat → nat with λ n. n ≠ 0 |
| . -1l . | string | f | string × char → string |
| . -l . | string | f | string × char → string |
| . -p . | string | f | string × nat → string |
| . .adr | branch | f | branch → address |
| . .adr:= . | branch | f | branch × address → branch |
| . .branch? | branch | p | branch |
| . .butlast | string | pf | string → string with λ str. str ≠ "" |
| . .char1 | string | pf | string → char with λ str. str ≠ "" |
| . .data? | key | p | key |
| . .dentry? | key | p | key |
| . .entry? | branch | p | branch |
| . .ino | key | f | key → nat |
| . .ino:= . | key | f | key × nat → key |
| . .inode? | key | p | key |
| . .key | branch | f | branch → key |
| . .key:= . | branch | f | branch × key → branch |
| . .last | string | pf | string → char with λ str. str ≠ "" |
| . .name | key | pf | key → string with λ key. key.dentry? |
| . .name:= . | key | pf | key × string → key with λ key, str. key.dentry? |
| . .part | key | pf | key → nat with λ key. key.data? |
| . .part:= . | key | pf | key × nat → key with λ key, m. key.data? |
| . .rstring | string | pf | string → string with λ str. str ≠ "" |
| . / . | nat-div | pf | nat × nat → nat with λ n, m. m ≠ 0 |
| . < . | nat-basic | p | nat × nat |
| . > . | nat | p | nat × nat |
| . [ . ] | string | pf | string × nat × char → string with λ str, n, char. n < # str |
| . [ . ] | string | pf | string × nat → char with λ str, n. n < # str |
| . ∈ . | string | p | char × string |
| . ≤ . | nat | p | nat × nat |
| . ≥ . | nat | p | nat × nat |
| . ⊑ . | string | p | string × string |
| . ⊒ . | string | p | string × string |
| ⊏ | string | p | string × string |
| ADR_DUMMY | constants | c | address |
| BRANCH_SIZE | constants | c | nat |
| MIN_SIZE | constants | c | nat |
| address | address | s | |
| adr | address | v | address |
| adr0 | address | v | address |
| adr1 | address | v | address |
| adr2 | address | v | address |
| adr3 | address | v | address |
| adr4 | address | v | address |
| adr5 | address | v | address |
| align↑ | align | f | nat × nat → nat |
| align↓ | align | f | nat × nat → nat |
| br | branch | v | branch |
| branch | branch | s | |
| butlastn | string | pf | nat × string → string with λ n, str. n ≤ # str |
| char | char | s | |
| char | char | v | char |
| char0 | char | v | char |
| char1 | char | v | char |
| char2 | char | v | char |
| datakey | key | f | nat × nat → key |
| dentrykey | key | f | nat × string → key |
| disj | string | p | string × string |
| dups | string | p | string |
| fillfirst | string | f | nat × char × string → string |
| firstn | string | pf | nat × string → string with λ n, str. n ≤ # str |
| frome | string | f | string × char → string |
| inodekey | key | f | nat → key |
| is-aligned | align | p | nat × nat |
| key | key | s | |
| key | key | v | key |
| key0 | branch | v | key |
| lastn | string | pf | nat × string → string with λ n, str. n ≤ # str |
| m | nat-basic | v | nat |
| m0 | key | v | nat |
| m1 | key | v | nat |
| m2 | key | v | nat |
| mkbranch | branch | f | key × address → branch |
| mkentry | branch | f | key × address → branch |
| mklist | string | f | char × nat → string |
| n | nat-basic | v | nat |
| n0 | nat-basic | v | nat |
| n1 | nat-basic | v | nat |
| nat | nat-basic | s | |
| pos | string | f | char × string → nat |
| restn | string | pf | nat × string → string with λ n, str. n ≤ # str |
| rev | string | f | string → string |
| rmdup | string | f | string → string |
| str | string | v | string |
| str0 | string | v | string |
| str1 | string | v | string |
| str2 | string | v | string |
| str3 | string | v | string |
| string | string | s | |
| sublist | string | pf | nat × nat × string → string with λ n, m, str. n + m ≤ # str |