document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1208678>Question 1208678</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the cardinality of set B?\r<BR>\n" );
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document.write( "B = {pi, e, {x, y, y} }\r<BR>\n" );
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document.write( "I see three items in set B.\r<BR>\n" );
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document.write( "I see pi, e, and another set containing elements x, y, and z \r<BR>\n" );
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document.write( "My answer is 3.\r<BR>\n" );
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document.write( "The cardinality is 3.\r<BR>\n" );
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document.write( "You say?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #847072 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52781)</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=847072\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "In your post, you write\r<BR>\n" );
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document.write( "\"I see pi, e, and another set containing elements x, y, and z \".\r<BR>\n" );
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document.write( "I do not see it.\r<BR>\n" );
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document.write( "What I see is pi, e, and the list {x,y,y} in curved brackets,<BR>\n" );
document.write( "which contradicts to the rules of presenting sets, since the element \"y\" is repeated twice.\r<BR>\n" );
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document.write( "Comment from student: Inside set B is another set. Let's call the other set a smaller box. <BR>\n" );
document.write( "It's like opening a box and finding a ball, glove and another box. We don't know what lies inside the smaller box. <BR>\n" );
document.write( "So, when I open the bigger box, I see three items: ball, glove and smaller box. <BR>\n" );
document.write( "So, the cardinality is 3. <BR>\n" );
document.write( "NOTE: I MADE A TYPO. THE SET INSIDE SET B SHOULD HAVE ELEMENTS X, Y, AND Z NOT X, Y, AND Y. <BR>\n" );
document.write( "WE DON'T REPEAT THE ELEMENTS IN A SET. YOU SAY?\r<BR>\n" );
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document.write( "<U>My response</U>: Correct.\r<BR>\n" );
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