No TPTP formula. May not be expressible in strict first order. | Languages.kif 13671-13671 | North central birds head language is a subclass of birds head language |
No TPTP formula. May not be expressible in strict first order. | Languages.kif 13678-13678 | Central birds head language is a subclass of north central birds head language |
No TPTP formula. May not be expressible in strict first order. | Languages.kif 13707-13707 | North birds head language is a subclass of north central birds head language |