*adjacent* | *documentation* (*adjacent* ?OBJ1 ?OBJ2) means that ?OBJ1 is close to, *near* or abutting ?OBJ2 with no other structure of the same kind intervening. This Predicate covers the following relations: adjoins, abuts, is contiguous to, is juxtaposed, *and* is close to | |

**has axiom** (=> (*adjacent* ?OBJ1 ?OBJ2) (or (*near* ?OBJ1 ?OBJ2) (*connected* ?OBJ1 ?OBJ2)))
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**is an ***instance* of EquivalenceRelation | |

BinaryRelation | **is first ***domain* of *DomainFn* | |

**is first ***domain* of *equivalenceRelationOn* | |

**is first ***domain* of *inverse* | |

**is first ***domain* of *irreflexiveOn* | |

**is first ***domain* of *partialOrderingOn* | |

**is first ***domain* of *RangeFn* | |

**is first ***domain* of *reflexiveOn* | |

**is first ***domain* of *totalOrderingOn* | |

**is first ***domain* of *trichotomizingOn* | |

**is second ***domain* of *inverse* | |

Class | **is third ***domain* of *domain* | |

**is third ***domain* of *domainSubclass* | |

Abstract | **is ***disjoint* from Physical | |