any space and time, then beyond god–a there would be no space and time within which someone or something might exist and therefore there would be no one else, nothing else beyond god–a. but we already know that there was god-b beyond god-a. that means it cannot be said about god-a that it is not within any space and time.
by the same logic it can be shown that god-b is also within some space and time.
so, if there are more than one gods, then space and time would already be there. that will further mean that creation has already taken place. so, again we will have to say that either 