The other is the universe information or the universe law world composed of immaterial objective entities, such as mathematics and logic, world laws and laws.
Everything in the material world (including us human beings or human bodies) is a constantly changing world, while the cosmic information in the non-material world or the metaphysical world is an eternal world. Mathematics completely belongs to the universe information world of immaterial or metamaterial, so mathematics belongs to the unchangeable category of metaphysical philosophy. Physical dimension belongs to the category of material world, so it will change with the change of material conditions.
As for the existence and non-existence of the material world, it only illustrates the changing nature of the material world, because everything in the material world will move, and everything that moves will have life and death, and life and death are the manifestations of existence and non-existence.
However, existence and non-existence do not mean the extinction of materials (according to the law of material immortality), but only the change of material existence form or material existence form.