document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=475334>Question 475334</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Determine if the argument is valid or invalid. Give a reason to justify answer.\r<BR>\n" );
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document.write( " If the bell rings, then we answer the door.<BR>\n" );
document.write( " The bell rings.<BR>\n" );
document.write( " We answer the door.\r<BR>\n" );
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document.write( "O Valid by the law of detachment<BR>\n" );
document.write( "O Valid by the law of contraposition<BR>\n" );
document.write( "O Invalid by fallacy of the converse<BR>\n" );
document.write( "O Invalid by fallacy of the inverse<BR>\n" );
document.write( "O Valid by the law of syllogism<BR>\n" );
document.write( "O Valid by disjunctive syllogism </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #325971 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=325971\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Here's a decent explanation for you I found on the web.<BR>\n" );
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document.write( "The answer to your question is the Law of Detachment.<BR>\n" );
document.write( "That law states that:<BR>\n" );
document.write( "p->q<BR>\n" );
document.write( "p is true therefore q has to be true.<BR>\n" );
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