逻辑函数化简:将F = (A+B+C+D)(A ̅+B+C+D)(A+B+C ̅+D) 化简为最简与非或表达式
首先,我们将各个逻辑变量的非操作进行展开:
A' = 1 - A C' = 1 - C
然后,将展开后的非操作代入原始逻辑函数中:
F = (A + B + C + D)(1 - A + B + C + D)(A + B + 1 - C + D)
接下来,我们使用分配律将上述函数进行展开:
F = (A(1 - A) + AB + AC + AD + B(1 - A) + BC + BD + C(1 - A) + CD + D(1 - A) + BD)(A + B + 1 - C + D)
继续化简:
F = (0 + AB + AC + AD + B - AB + BC + BD + C - AC + CD + D - AD + BD)(A + B + 1 - C + D)
F = (AB + AC + AD + B + BC + BD + C + CD + D + BD)(A + B + 1 - C + D)
最后,我们将上述结果整理为最简与非或表达式:
F = AB + AC + AD + B + BC + BD + C + CD + D + BD(A + B + 1 - C + D)
F = AB + AC + AD + B + BC + BD + C + CD + D + ABD + BBD + ACD + BCD
因此,最简与非或表达式为:
F = AB + AC + AD + B + BC + BD + C + CD + D + ABD + BBD + ACD + BCD
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