Math Help - Questions about equivalance relations and equivalance classes. . .

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for the first question, can i assume the non-empty set A has more than one element, and say a = something and b = something to give example.

Originally Posted by Dakaa

http://i54.tinypic.com/1z2q1dl.png

for the first question, can i assume the non-empty set A has more than one element, and say a = something and b = something to give example.

No, you can't. Choose for example . A little help: Reflexive For all we have . But because being , choosing we have . Conclusion: .

Try the rest.

Originally Posted by FernandoRevilla

No, you can't. Choose for example . A little help: Reflexive For all we have . But because being , choosing we have . Conclusion: .

Try the rest.

Yup, did the rest, now moving on to question 2.