一阶公式"∀x(P(x)∨∃yR(y))→Q(x)中量词""x的辖域是()。
A: (P(x)∨∃yR(y))
B: P(x)
C: ∀x(P(x)∨∃yR(y))
D: (P(x)∨∃R(y))→Q(x)
A: (P(x)∨∃yR(y))
B: P(x)
C: ∀x(P(x)∨∃yR(y))
D: (P(x)∨∃R(y))→Q(x)
举一反三
- 谓词公式(∀x(P(x)∨∃yR(y)))→Q(x)∧R(x)中量词∀x的辖域是 . A: P(x)∨∃yR(y) B: P(x) C: (P(x)∨∃yR(y))→Q(x) D: (∀x(P(x)∨∃yR(y)))→Q(x)∧R(x)
- 谓词公式”x(P(x)Ú $yR(y))→Q(x)中量词”x的辖域是() A: P(x)Ú $yR(y) B: P(x) C: $yR(y) D: (P(x)Ú $yR(y))→Q(x)
- 谓词公式∀x(P(x)∨∃yR(y))→Q(x)中量词∀x的辖域是() A: ∀x(P(x)∨∃yR(y)) B: P(x) C: P(x)∨∃yR(y) D: P(x),Q(x)
- 谓词公式"x(P(x)Ú$yR(y))®Q(x)中量词"x的作用域是 A: "x(P(x)Ú$yR(y)) B: P(x)Ú$yR(y) C: P(x) D: P(x),Q(x)
- 谓词公式"x(P(x)Ú $yR(y))→Q(x)中量词"x的辖域是