좌변 ~(0and0)=1 / ~(0and1)=1 / ~(1and0)=1 / ~(1and1)=0
우변 (~0)or (~0)=1 / (~0)or (~1)=1 / (~1)or (~0)=1 / (~1)or (~1)=0
좌변 ~(0and0)=1 / ~(0and1)=1 / ~(1and0)=1 / ~(1and1)=0
우변 (~0)or (~0)=1 / (~0)or (~1)=1 / (~1)or (~0)=1 / (~1)or (~1)=0