document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1195889>Question 1195889</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A is a nonempty set. The empty relation ∅ is a relation on A.<BR>\n" );
document.write( "Is the relation R=∅ invertible in (R(A),o)\r<BR>\n" );
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document.write( "a. No. For all S ∈ R(A), ∅o S= ∅<BR>\n" );
document.write( "b. Yes. Its inverse is ∅ </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #828516 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52798)</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=828516\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "May I ask you: what is \"empty relation on A, where A is nonempty set ?\"\r<BR>\n" );
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document.write( "Could you please give a definition or refer to a source ?\r<BR>\n" );
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document.write( " </SPAN>\n" );
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