| Term: | unity condition |
| Definition: | A logical test that distinguishes “the parts of an instance from the rest of the world by means of a unifying relation that binds them together (not involving anything else). (Guarino and Welty, 2000, p. 98) |
| Examples: | For example, asking ‘Is that my dog?’ would be a problem of identity, whereas asking ‘is the collar part of my dog?’ would be a problem of unity” |