Proving Intervals with same Cardinality
105425
The intervals $(2,4)$ and $(-1,17)$ have the same cardinality
9158
Proving that a propositional theory of any cardinality has an independent set of axioms
104527
Prove that there are two subsets of any cardinality-10 subsets of $\{1,2\dots,106\}$ that sum to the same number
108922
Cardinality and infinite sets: naturals, integers, rationals, bijections
138283
$|(a,b)| = |\Bbb R|$ ? Cardinality of any open interval
123613
Double Complement of a set proof
86421
Proof of the definition of cardinal exponentiation
47903
How to prove every closed interval in R is compact?
156783
$\mathbb R$ has the same cardinality of any interval
142631
Show that A has the same cardinality as $A\setminus\{x,y,z\}$
31340
Concurrent lines proof for a regular 18-gon
82947
Undecidable cardinality
142886
Find set with maximal cardinality given constraints
45216
Cardinality of $[0,1]$
4467
Proving Cantor's theorem
55729
Family of Closed/Open Nested Intervals
108045
Show that are logically equivalent