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No TPTP formula. May not be expressible in strict first order. Merge.kif 2239-2239 Reflexive relation is a subclass of binary relation
No TPTP formula. May not be expressible in strict first order. Merge.kif 2367-2367 Partial ordering relation is a subclass of reflexive relation
No TPTP formula. May not be expressible in strict first order. Merge.kif 2394-2394 Equivalence relation is a subclass of reflexive relation


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