i. Translate ∀x[C(x) ∨ ∃y(C(y) ∧ F(x, y)] into English, where C(x): x has a computer F(x, y): x and y are friends The domain for both x and y is all students in your school. ii. Translate ∃x∀y∀z[(F(x, y)∧F(x, z)∧(y not the some as z)) −→ ¬F(y, z)] where; F(a, b): a and b are friends. The domain of x, y and z consists of all students in your school
i. Translate ∀x[C(x) ∨ ∃y(C(y) ∧ F(x, y)] into English, where C(x): x has a computer F(x, y): x and y are friends The domain for both x and y is all students in your school. ii. Translate ∃x∀y∀z[(F(x, y)∧F(x, z)∧(y not the some as z)) −→ ¬F(y, z)] where; F(a, b): a and b are friends. The domain of x, y and z consists of all students in your school
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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Question
i. Translate ∀x[C(x) ∨ ∃y(C(y) ∧ F(x, y)] into English, where
C(x): x has a computer
F(x, y): x and y are friends
The domain for both x and y is all students in your school.
ii. Translate ∃x∀y∀z[(F(x, y)∧F(x, z)∧(y not the some as z)) −→ ¬F(y, z)] where; F(a, b):
a and b are friends. The domain of x, y and z consists of all students in your school
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