Proving Algebra Relation is Equivalent
85507
Equivalence Relation problem
75007
How can I prove this relation between the elementary set theory and the elementary logic?
107383
Derived sets - prove $(A \cup B)' = A' \cup B'$
43310
Proving $A\cap(B-C)$ is equal to $(A\cap B)-(A\cap C)$
131155
$x\sim y\iff x^2\equiv y^2\pmod{\!6}$ is an equivalence relation.
13026
Prove that if AB=I_m, then rk(A)=rk(B).
113065
Proving equivalences of statements equivalent to AC
15626
Relations of a~b iff b = ak^2
98518
Cardinality of equivalence relations on N
150738
Proof of $(A - B) - C = A - (B \cup C)$
34693
Prove $E^{\mathbb Q}[Y]=E^{\mathbb P}[XY]$ if $E^{\mathbb P}[X]=\mathbb P(X>0)=1$ and $ \mathbb Q(A)=E^{\mathbb Q}[X1_A] $
140335
Prove that the empty relation is Transitive, Symmetric but not Reflexive
104977
How to calculate equivalence relations
109318
Equivalence relation $(a,b) R (c,d) \Leftrightarrow a + d = b + c$
84397
$x$ conjugate to $y$ in a group $G$ is an equivalence relation on $G$
60140
Proof of Equivalence Relation $R=\{(a,b)\in\Bbb N^2: 5\mid (2a+3b)\}$
97801
If $R_{1}$ and $R_{2}$ are relations on a set S with $R_{1};R_{2}=R_{2};R_{1}$. Then $R_{1}$ and $R_{2}$ are bijective maps