- #1
estra
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Homework Statement
Prove that when R and S are equivalence relations, then SR is
equivalance relation when SR=RS.
Homework Equations
The Attempt at a Solution
I want to know what sets should i take for the relations ?
is it ok when i take R a a subset of X x Y and S as a subset of Y
and Z or should i take it some other way?
then SR is a subset of X x Z ? am i moving right?
also when tring to solve this problem I found that x has to be equal
to y when SR = RS..
Thank you!