Is universe infinite or not?
56103
Is the universe finite or infinite?
98769
Find a universe and a predicate that satisfy the following formula
117561
A set is infinite iff there is a one-to-one correspondent with one of its proper subsets?
117108
Is the Universe being dragged into a singularity rather than expanding?
3103
How do we know the universe is expanding, and not that its contents are shrinking?
3645
Why Are the Reals Uncountable?
112910
Is the set of real numbers really uncountably infinite?
76670
Are We Living in a Simulated Universe?
152130
Maximum size of the observable universe?
76637
Why aren't particles constantly "measured" by the whole universe?
102202
The smallest infinity and the axiom of choice
100333
Show A is countable infinity
95004
Infinite Volume but Finite Surface Area
126739
Is everything greater than None?
65001
Universe from nothing?
41262
Does the concept of infinity have any practical applications?
16647
Is the world $C^\infty$?