Let the domain be the set of all people. Let: P(x,y): x knows y. Which of the following is the correct translation for: "Someone is known by everyone." Select the correct option (a) ∃y∀x P(x,y) (b) ∃x∀y P(x,y) (c) ∀y∃x P(x,y) (d) ∀x∃y P(x,y)
Let the domain be the set of all people. Let: P(x,y): x knows y. Which of the following is the correct translation for: "Someone is known by everyone." Select the correct option (a) ∃y∀x P(x,y) (b) ∃x∀y P(x,y) (c) ∀y∃x P(x,y) (d) ∀x∃y P(x,y)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
Let the domain be the set of all people. Let:
P(x,y): x knows y.
Which of the following is the correct translation for:
"Someone is known by everyone."
Select the correct option
(a) ∃y∀x P(x,y)
(b) ∃x∀y P(x,y)
(c) ∀y∃x P(x,y)
(d) ∀x∃y P(x,y)
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