(subclass EquivalenceRelation TransitiveRelation) | Merge.kif 2392-2392 | Equivalence relation is a subclass of transitive relation |
(subclass EquivalenceRelation SymmetricRelation) | Merge.kif 2393-2393 | Equivalence relation is a subclass of symmetric relation |
(subclass EquivalenceRelation ReflexiveRelation) | Merge.kif 2394-2394 | Equivalence relation is a subclass of reflexive relation |