a,b,c Please write answer so I can copy paste*** Exercise 1.6.4: Truth values for quantified statements for a given set of predicates. The domain for this problem is a set {a,b,c,d}. The table below shows the value of three predicates for each of the elements in the domain. For example, Q(b) is false because the truth value in row b, column Q is F. P Q R a T T F b T F F c T F F d T F F Which statements are true? Justify your answer. (a) ∀x P(x) (b) ∃x P(x) (c) ∀x Q(x)
a,b,c Please write answer so I can copy paste*** Exercise 1.6.4: Truth values for quantified statements for a given set of predicates. The domain for this problem is a set {a,b,c,d}. The table below shows the value of three predicates for each of the elements in the domain. For example, Q(b) is false because the truth value in row b, column Q is F. P Q R a T T F b T F F c T F F d T F F Which statements are true? Justify your answer. (a) ∀x P(x) (b) ∃x P(x) (c) ∀x Q(x)
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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a,b,c
Please write answer so I can copy paste***
Exercise 1.6.4: Truth values for quantified statements for a given set of predicates.
The domain for this problem is a set {a,b,c,d}. The table below shows the value of three predicates for each of the elements in the domain. For example, Q(b) is false because the truth value in row b, column Q is F.
P | Q | R | |
a | T | T | F |
b | T | F | F |
c | T | F | F |
d | T | F | F |
Which statements are true? Justify your answer.
(a)
∀x P(x)
(b)
∃x P(x)
(c)
∀x Q(x)
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