document.write( "Question 251007: There is only one premise, and the conclusion has different letters\r
\n" ); document.write( "\n" ); document.write( "Here it is:\r
\n" ); document.write( "\n" ); document.write( "A -> B\r
\n" ); document.write( "\n" ); document.write( "We have to show (A & C) -> B
\n" ); document.write( "

Algebra.Com's Answer #185032 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
A->B
\n" ); document.write( "(A&C)->B
\n" ); document.write( "There are two problems with this.
\n" ); document.write( "& is not a mathematical symbol such as + and * for addition and multiplication
\n" ); document.write( "SO I do not know what you mean by A & C
\n" ); document.write( "Let's say that & means addition
\n" ); document.write( "If C is negative
\n" ); document.write( "A-C is not necessarily = nor greater B
\n" ); document.write( "9-> 4
\n" ); document.write( "9-7 is not greater than 4
\n" ); document.write( "and not equal to 4
\n" ); document.write( "Please explain A&C
\n" ); document.write( "
\n" ); document.write( "
\n" );