fractionalClassKeys :: [Unique]
fractionalClassKeys =
        [ fractionalClassKey
        , floatingClassKey
        , realFracClassKey
        , realFloatClassKey
        ]
fractionalClassKeys :: [Unique]
fractionalClassKeys =
        [ fractionalClassKey
        , floatingClassKey
        , realFracClassKey
        , realFloatClassKey
        ]
fractionalClassKeys =
        [ fractionalClassKey
        , floatingClassKey
        , realFracClassKey
        , realFloatClassKey
        ]