document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=949239>Question 949239</A>: <I><SPAN STYLE=\"word-break: break-all;\"> show the proof:\r<BR>\n" );
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document.write( "(P->Q) & (P->R)\r<BR>\n" );
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document.write( "conclusion:<BR>\n" );
document.write( "P-> (Q&R) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #579465 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=579465\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The attached truth tables gives you the solution.<BR>\n" );
document.write( "If the truth tables are identical, then the conditions are equivalent.<BR>\n" );
document.write( "The if and only if test is all true is they the truth tables are identical.<BR>\n" );
document.write( "truth table is shown below:<BR>\n" );
document.write( "you need 2^n number of rows.<BR>\n" );
document.write( "2^3 = 8 which is why the table has 8 rows.<BR>\n" );
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document.write( " </SPAN>\n" );
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