| Answer | Crossword Clue |
|---|---|
| identity | A transformation that leaves an object unchanged |
| identities | A transformation that leaves an object unchanged |
| identities | An element of a set that, if combined with another element by a specified binary operation, leaves that element unchanged |
| identity | An element of a set that, if combined with another element by a specified binary operation, leaves that element unchanged |
| invariants | A function, quantity, or property that remains unchanged when a specified transformation is applied |
