Distribute the not.
!(a && b && c)
!a || !b || !c
De Morgan’s Law:
!(a && b)is equivalent to!a || !b.!(a || b)is equivalent to!a && !b.
Distribute the not.
!(a && b && c)
!a || !b || !c
De Morgan’s Law:
!(a && b) is equivalent to !a || !b.!(a || b) is equivalent to !a && !b.