8.19 Assuming predicates Parent(p, q) and Female (p) and cónstánts Joan and Renn, with the obvious meanings, express each of the following sentences in first-order logic. (You may use the abbreviation 3 to mean "there exists exactly one.") a. Joan has a daughter (possibly more than one, and possibly sons as well). b. Joan has exactly one daughter (but may have sons as well). c. Joan has exactly one child, a daughter. d. Joan and Kevin have exactly one child together. e. Joan has at least one child with Kevin, and no children with anyone else.
8.19 Assuming predicates Parent(p, q) and Female (p) and cónstánts Joan and Renn, with the obvious meanings, express each of the following sentences in first-order logic. (You may use the abbreviation 3 to mean "there exists exactly one.") a. Joan has a daughter (possibly more than one, and possibly sons as well). b. Joan has exactly one daughter (but may have sons as well). c. Joan has exactly one child, a daughter. d. Joan and Kevin have exactly one child together. e. Joan has at least one child with Kevin, and no children with anyone else.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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