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If A={a,b,c,d,e}, then the number of equivalence relations on
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If , then the number of equivalence relations on is 

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Practice questions from similar books

Question 1
Let R={(a, a), (b, c), (a, b)} be a relation on a set A={a,b,c}. Then the minimum number of ordered pair which when added to R make it transitive are ____.

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Question 2
How many equivalence relations on the set {1,2,3} containing (1,2) and (2,1) are there in all? Justify your answer.

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Question 3
Let . Then number of relations containing and which are reflexive and symmetric but not transitive is

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Question 4
 is a relation which is:

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Question Text
If , then the number of equivalence relations on is