Tagged Questions
1
vote
1answer
92 views
What is the difference between a binary relation and an equivalence class?
Is an equivalence class essentially a binary relation whose elements have an equivalence relation?
2
votes
3answers
337 views
Prove that the intersection of two equivalence relations is an equivalence relation.
I am reading this chapter of the Book of Proof, and I'm stuck at the Exercise 10 of section 11.2. It is as follows.
Suppose $R$ and $S$ are two equivalence relations on a set $A$. Prove
that $R ...
