(subclass TwoDimensionalFigure GeometricFigure) | Merge.kif 17874-17874 | TwoDimensionalFigure は GeometricFigure の subclass では %n |
(subclass OpenTwoDimensionalFigure TwoDimensionalFigure) | Merge.kif 17880-17880 | OpenTwoDimensionalFigure は TwoDimensionalFigure の subclass では %n |
(subclass ClosedTwoDimensionalFigure TwoDimensionalFigure) | Merge.kif 17888-17888 | ClosedTwoDimensionalFigure は TwoDimensionalFigure の subclass では %n |