public static VecBool IsLesserOrEqualTo(this IVecValue lhs, IVecValue rhs) => lhs.IsEqualTo(rhs).Or(lhs.IsLesserThan(rhs));
public static VecBool IsGreaterThan(this IVecValue lhs, IVecValue rhs) => lhs.IsLesserThan(rhs).Not();