document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1049441>Question 1049441</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Prove: \r<BR>\n" );
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document.write( "Premise: Mv(N->M)<BR>\n" );
document.write( "Conclusion: ~M->~N </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #666348 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=666348\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mv(N->M)------------------hypothesis<BR>\n" );
document.write( "M v (~N v M) -------------material implication<BR>\n" );
document.write( "M v (M V ~N)--------------commutativity<BR>\n" );
document.write( "(M v M) V ~N-------------Associativity<BR>\n" );
document.write( "M v ~N -------------------idempotency of v<BR>\n" );
document.write( "~~M v ~N -----------------double negation<BR>\n" );
document.write( "~M -> ~N -----------------material implication </SPAN>\n" );
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