| Symbol | Specification | Kind | Type |
|---|---|---|---|
| # . | tree | f | tree → nat |
| . + . | nat-basic2 | f | nat × nat → nat |
| . +1 | nat-basic1 | f | nat → nat |
| . - . | nat | f | nat × nat → nat |
| . -1 | nat-basic1 | f | nat → nat |
| . .left | tree | f | tree → tree |
| . .left:= . | tree | f | tree × tree → tree |
| . .right | tree | f | tree → tree |
| . .right:= . | tree | f | tree × tree → tree |
| . .val | tree | f | tree → elem |
| . .val:= . | tree | f | tree × elem → tree |
| . < . | nat-basic1 | p | nat × nat |
| . > . | nat | p | nat × nat |
| . ≤ . | nat | p | nat × nat |
| . ≥ . | nat | p | nat × nat |
| a | elem | v | elem |
| a0 | tree | v | elem |
| b | elem | v | elem |
| branch | tree | f | tree × elem × tree → tree |
| c | elem | v | elem |
| elem | elem | s | |
| leaf | tree | c | tree |
| m | nat-basic2 | v | nat |
| n | nat-basic1 | v | nat |
| n0 | nat-basic1 | v | nat |
| n1 | nat-basic1 | v | nat |
| nat | nat-basic1 | s | |
| t | tree | v | tree |
| t0 | tree | v | tree |
| t1 | tree | v | tree |
| t2 | tree | v | tree |
| tree | tree | s |