I froze up a bit in an interview over a DeMorgan's law equivalency question. All I could think of were Karnough maps. On the way home I palm slapped myself when

I froze up a bit in an interview over a DeMorgan's law equivalency question. All I could think of were Karnough maps. On the way home I palm slapped myself when I remember DeMorgan's... "not (A or B)" is the same as "(not A) and (not B)".