[Solved] Use quantifiers and predicates with more than one variable to express, “There is a pupil in this lecture who has taken at least one course in Discrete Maths.”

Q.	Use quantifiers and predicates with more than one variable to express, “There is a pupil in this lecture who has taken at least one course in Discrete Maths.”
A.	∃x∃yp (x, y), where p (x, y) is “x has taken y,” the domain for x consists of all pupil in this class, and the domain for y consists of all discrete maths lectures
B.	∃x∃yp (x, y), where p (x, y) is “x has taken y,” the domain for x consists of all discrete maths lectures, and the domain for y consists of all pupil in this class
C.	∀x∀yp(x, y), where p (x, y) is “x has taken y,” the domain for x consists of all pupil in this class, and the domain for y consists of all discrete maths lectures
D.	∃x∀yp(x, y), where p (x, y) is “x has taken y,” the domain for x consists of all pupil in this class, and the domain for y consists of all discrete maths lectures
Answer» A. ∃x∃yp (x, y), where p (x, y) is “x has taken y,” the domain for x consists of all pupil in this class, and the domain for y consists of all discrete maths lectures

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