document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=318387>Question 318387</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ~[~(f.f)v ~ (~f v f)]. I dont know when there is a curl symbol in front of a conjuncts that is false you make that conjunct a true value using the true value table? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #227866 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=227866\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hint: ~f means \"not f\" and it has the opposite truth value of f. So this means that ~f v f is ALWAYS true since either ~f or f is true. Also, f . f just simplifies to f since f . f will have the same truth values as f. </SPAN>\n" );
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