(subclass RelationExtendedToQuantities Relation) | Merge.kif 3533-3533 | Relation extended to quantities is a subclass of relation |
(subclass RelationExtendedToQuantities InheritableRelation) | Merge.kif 3534-3534 | Relation extended to quantities is a subclass of inheritable relation |
(subclass BinaryRelationExtendedToQuantities RelationExtendedToQuantities) | Geography.kif 642-642 | Binary relation extended to quantities is a subclass of relation extended to quantities |