I'm trying to learning boolean algebra. One of de morgan's law is not understood. how does A'B'C' convert to A'+B'+C'?
As I know,
1. (A'B')' = A+B
I think it should be (A+B+C)'.
Is this same between A'+B'+C' and (A+B+C)' or A'B'C' and (ABC)'?