MCQOPTIONS
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MCQOPTIONS
| 1. |
Use quantifiers and predicates with more than one variable to express, ‚Äö√Ñ√∂‚àö√ë‚àö‚à´There is a pupil in this lecture who has taken at least one course in Discrete Maths.‚Äö√Ñ√∂‚àö√ë‚àöœ?# |
| 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» B. ‚Äö√Ñ√∂‚àö‚Ć‚àö√¢x‚Äö√Ñ√∂‚àö‚Ć‚àö√¢yP (x, y), where P (x, y) is ‚Äö√Ñ√∂‚àö√ë‚àö‚à´x has taken y,‚Äö√Ñ√∂‚àö√ë‚àöœÄ the domain for x consists of all Discrete Maths lectures, and the domain for y consists of all pupil in this class | |