document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=841393>Question 841393</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student argues that A={1{1}} has only one element.   How do you respond?  <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 #506884 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=506884\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The student has used confusing set notation.<BR>\n" );
document.write( "You use commas to separate the elements. <BR>\n" );
document.write( "Additionally, the curly brackets denotes the collection of elements in the set. <BR>\n" );
document.write( "Adding another set of curly brackets only causes confusion. <BR>\n" );
document.write( "If the student wants to denote a set of other sets, you would write.<BR>\n" );
document.write( "A={B,C,D} where B={1},C={0,1}, and D={1,2} are other sets, you wouldn't write<BR>\n" );
document.write( "A={{1},{0,1},{1,2}}<BR>\n" );
document.write( "So if that was the students intent, she would write A={1,B} </SPAN>\n" );
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