document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1014995>Question 1014995</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let A = {0, 1, 2, 3} and R = ((x, y) : x &#8722; y = 3k, k is an integer) i.e,<BR>\n" );
document.write( "XRy if f x-y is divisible by 3, then prove that R is an equivalence<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #631564 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52796)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=631564\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "if (x-y) is divisible by 3, then (y-x) is divisible by 3.\r<BR>\n" );
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document.write( "This is the key idea of the proof.\r<BR>\n" );
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document.write( "The info about the set A is IRRELEVANT.\r<BR>\n" );
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