Nand this Boolean Algebra Function? I'm trying to convert this Expression that I got from minterms given to me by my professor to use only NANDS. I swear it should be right, but the output Multisim is giving me is false.
minterms(0,1,2,3,4,5,7,14,15)
Expression: ~A~B + ~A~C + ABC + ~AD
So, converted to NANDs, it should be: ~AB nand ~AC nand ABC nand ~AD, right?

Hint: If I am given a expression to convert it so that there is only NAND inside, I use the fact that AND, OR, and NOT gates can be expressed in NANDs only, and if needed use de Morgan rule.
e.g.
a AND b = NOT (NOT( a AND b)) = NOT (a NAND  b)= True NAND (a NAND b)  
