Infinite universe Definition and 55 Threads

The term "the universe is infinite" is inaccurate considering the fact that the universe is expanding. Definitions 1.)By definition, an "infinite set" is: a set whose cardinal elements are equal to the subset of the [infinite] set. 2.) By definition, the word "universe" is defined as...

So it's possible the universe could in fact be infinite and expanding? A singularity has an finite volume but infinite density, correct? Then isn't it possible for an infinite expanding universe to have an end? I recall reading the Theory of Everything by Hawking where he talked about how if...

So it's possible the universe could in fact be infinite and expanding? A singularity has an finite volume but infinite density, correct? Then isn't it possible for an infinite expanding universe to have an end? I recall reading the Theory of Everything by Hawking where he talked about how if you...

Is our observation necessarily limited in an infinite physical universe?

mathematics describes the universe. in mathematics there are infinities. therefore the universe is described by infinities- therefore the universe is infinite. what is the flaw? i think that the flow is that in mathematics there arent just infinities but it also has finite...