Let $R$ and $S$ be two equivalence relations on a set $A$. Then
Let $R$ and $S$ be two equivalence relations on a set $A$. Then
- A
$R \cup S $ is an equivalence relation on $A$
- B
$R \cap S $ is an equivalence relation on $A$
- C
$R - S$ is an equivalence relation on $A$
- D
None of these
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