document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=644546>Question 644546</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Prove or give a counterexample.<BR>\n" );
document.write( "S &#8746; T = T &#8660; S &#8838; T<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #405097 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=405097\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hint: prove that if S is a subset of T, then the union of S and T is T.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Then prove that if S U T = T, then S must be a subset of T </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );