self.square6 = Polyhedron(inequalities=[x - 3, 6 - x, y - 3, 6 -y])
self.universe = Polyhedron([])
self.disjoint = And(Ge(x, 0), Ge(-x + 2, 0), Ge(y, 0), Ge(-y + 2, 0))
self.square6 = Polyhedron(inequalities=[x - 3, 6 - x, y - 3, 6 -y])
self.universe = Polyhedron([])
self.disjoint = And(Ge(x, 0), Ge(-x + 2, 0), Ge(y, 0), Ge(-y + 2, 0))