离散数学 下面第三题的两个怎么做

2025-05-16 01:50:01
推荐回答(1个)
回答1:

3.用p'表示非p.
(1)p'q'r+p'qr
=p'r(q'+q)
=p'r.
(2)(p'+q'+r')(p+q+r')
=(p'+q')(p+q)+r'
=p'q+pq'+r'.