Equivalence Relations OF sets
111720
Is "have the same cardinality" a equivalence relation?
61747
Proof of exchange principle in set theory
85713
Showing Parallelism is an equivalence relation in $\Bbb R ^2$
21663
Bijection between power sets of sets implies bijection between sets?
87265
If $(A-\lambda{I})$ is $\lambda$-equivalent to $(B-\lambda{I})$ then $A$ is similar to $B$
45878
Elementary Set Theory: Ordinals, Well Orderings and Isomorphisms
12404
Union of definable sets
98518
Cardinality of equivalence relations on N
127596
Composition of equivalence relations
108367
proving tautologically equivalent
19289
complement of a set and its measure
66548
proving topological equivalence
83996
For any two sets $A,B$ , $|A|\leq|B|$ or $|B|\leq|A|$
36566
Equivalence classes and metric spaces
113065
Proving equivalences of statements equivalent to AC
104977
How to calculate equivalence relations
146967
Understanding equivalent metric spaces