document.write( "Question 957000: Derive: R & M\r
\n" ); document.write( "\n" ); document.write( "1. ~(R & M) \"if then symbol\" (L & ~N)
\n" ); document.write( "2. N \n" ); document.write( "
Algebra.Com's Answer #584758 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "1. ~(R & M) --> (L & ~N)\r\n" );
document.write( "2. N\r\n" );
document.write( "------------------------\r\n" );
document.write( "3. N v ~L           2    Addition\r\n" );
document.write( "4. ~(N & L)         3    De Morgan's Law\r\n" );
document.write( "5. ~(L & N)         4    Commutation\r\n" );
document.write( "6. ~~(R & M)        1,5  Modus Tollens\r\n" );
document.write( "7. R & M            6    Double Negation\r\n" );
document.write( "
\r
\n" ); document.write( "\n" ); document.write( "------------------------------------------------------------------------------------------------------------------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "If you need more one-on-one help, email me at jim_thompson5910@hotmail.com. You can ask me a few more questions for free, but afterwards, I would charge you ($2 a problem to have steps shown or $1 a problem for answer only).\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Alternatively, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Any amount is greatly appreciated as it helps me a lot. This donation is to support free tutoring. Thank you.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Jim\r
\n" ); document.write( "\n" ); document.write( "------------------------------------------------------------------------------------------------------------------------ \n" ); document.write( "
\n" );