(subclass SingleValuedRelation Relation) | Merge.kif 2176-2176 | 子類 SingleValuedRelation and Relation |
(subclass SingleValuedRelation InheritableRelation) | Merge.kif 2177-2177 | 子類 SingleValuedRelation and 可繼承的關係 |
(subclass Function SingleValuedRelation) | Merge.kif 3350-3350 | 子類 Function and SingleValuedRelation |