No TPTP formula. May not be expressible in strict first order. | Geography.kif 7128-7128 | Crystalline structure is a subclass of structure attribute |
No TPTP formula. May not be expressible in strict first order. | Geography.kif 7130-7130 | Mono crystalline is a subclass of crystalline structure |
No TPTP formula. May not be expressible in strict first order. | Geography.kif 7136-7136 | Poly crystalline is a subclass of crystalline structure |