| Symbol | Specification | Kind | Type |
|---|---|---|---|
| . + . | nat-basic2 | f | nat × nat → nat |
| . +1 | nat-basic1 | f | nat → nat |
| . - . | nat | f | nat × nat → nat |
| . -1 | nat-basic1 | f | nat → nat |
| . < . | nat-basic1 | p | nat × nat |
| . > . | nat | p | nat × nat |
| . ≤ . | nat | p | nat × nat |
| . ≥ . | nat | p | nat × nat |
| G1 | RG2+DF-Theory-Ext | p | state × state |
| G2 | RG2+DF-Theory-Ext | p | state × state |
| Init | RG2+DF-Theory-Ext | p | state |
| Inv | RG2+DF-Theory-Ext | p | state |
| N | RG2+DF-Theory-Ext | v | nat,flexible |
| Post1 | RG2+DF-Theory-Ext | p | state × state |
| Post2 | RG2+DF-Theory-Ext | p | state × state |
| Pre1 | RG2+DF-Theory-Ext | p | state × state |
| Pre2 | RG2+DF-Theory-Ext | p | state × state |
| Proc1 | RG2+DF-Theory-Ext | pr | : state (nondeterministic nonfunctional) |
| Proc2 | RG2+DF-Theory-Ext | pr | : state (nondeterministic nonfunctional) |
| R1 | RG2+DF-Theory-Ext | p | state × state |
| R2 | RG2+DF-Theory-Ext | p | state × state |
| Runs1 | RG2+DF-Theory-Ext | p | state |
| Runs2 | RG2+DF-Theory-Ext | p | state |
| S | state | v | state,flexible |
| m | nat-basic1 | v | nat |
| n | nat-basic1 | v | nat |
| n0 | nat-basic1 | v | nat |
| n1 | nat-basic1 | v | nat |
| nat | nat-basic1 | s | |
| s | state | v | state |
| s0 | state | v | state |
| s1 | state | v | state |
| s2 | state | v | state |
| state | state | s |