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If $R \subseteq A \times A$ is it true that $R$ is symmetrical since $xRy$ then $yRx$ ?

I have written that this is also antisymmetrical if both $x\leq y$ and $y\leq x$ if $x =y$

How does I then make $R \subseteq A \times A$ transitive?

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    In English, it's called "transitive".2011-03-16

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