Proof that There is Only One Universe.

A universe is composed of creatures

Creatures are things that exist

Creatures are things composed of essence, be and limit

Creatures are then beings that are described according to the manner in which an essence exists in the real

An essence exists in the real as described by the categories of substance and accidents.

Therefore, creatures fall into the categories of being of substance and the accidents, which are - action, passion, habit, relation, quantity, when, where, posture

Therefore a universe is composed of creatures contained within the categories of being

A group of creatures as described by the categories, is therefore a description according to being of a universe.

As one universe is contained within the categories of being account for all creatures then any subsequent universe is contained within the categories of being

Also, if there is more than one universe, the universe is separate from the other(s) according to the categories such as substance and the accidentals of relation, where, when and so on.

But for one universe to be separated from another through the categories, means the cause of separation of the universes also falls under the categories

For a separation occurs as cause, which is either a substance or an accident

But to fall under the categories, is to be a part of a universe or the universe.

Therefore if there is hypothetically, more than one universe, then the real universe is separate from the hypothetical universe through a cause

This cause is a creature, which falls under the categories of being

Therefore if there is hypothetically more than one universe, then it is separate according to the categories of being

But to be separate according to the categories of being, means to fall under the categories of being.

But to fall under the categories of being is a creature and as a group, a universe

Therefore if there is a possible universe separate from the real universe, then it is separated by part of the universe

But what is separated by part of the universe, is only part of the universe and not another universe

But what is part of the universe, means it is part of a whole

When the whole falls under the categories of being, then what is part of a whole, infers the whole is one (as it does with a universe).

Therefore any separation of the universe into further hypothetical universes means there is only one real universe as described by the categories of being

Therefore there can only be one real universe