第一章 逻辑代数基础 二、吸收法: A+AB=A [例们Y=AB+AD+BE (书p20) =A+B+AD+BE=4+B a03822 L例们Y=AB+ACD+BCD 1888838888 =AB+(4+B)CD =AB+ABCD=AB=A+B二、吸收法: A + AB = A Y = AB + AD + BE = A + B + AD + BE = A+ B [例] (书 p20) [例] Y = AB + ACD + BCD = AB + (A + B) CD = AB + AB CD = AB = A + B