(subclass RealNumber Number) | Merge.kif 1891-1891 | Real number is a subclass of number |
(subclass RationalNumber RealNumber) | Merge.kif 1911-1911 | Rational number is a subclass of real number |
(subclass IrrationalNumber RealNumber) | Merge.kif 1916-1916 | Irrational number is a subclass of real number |
(subclass NonnegativeRealNumber RealNumber) | Merge.kif 1921-1921 | Nonnegative real number is a subclass of real number |
(subclass NegativeRealNumber RealNumber) | Merge.kif 1943-1943 | Negative real number is a subclass of real number |
(subclass BinaryNumber RealNumber) | Merge.kif 2003-2003 | Binary number is a subclass of real number |