离散数学填空题一题,求大神指教

2025-06-21 13:04:25
推荐回答(1个)
回答1:

∃xP(x) <=> P(a)∧P(b)

∀xP(x)→∃yG(y) <=>P(a)∧P(b)→G(a)∨G(b)