Exercise 3. Build the truth table of (p V q) ++ (~q → P), where p and q are two propositionalformulae? Is the previous formula a tautology?. In cach case below, say whether the givenExercise 4 (Ev.statement is true for the universe (0, 1)- xERI0 y))b. Vxay(x2 y))c. 3yVx(x> y))d. ByVx(x2y))

Answered: Exercise 3. Build the truth table…

Exercise 3. Build the truth table of(pVq)++ ( - P, where p and q are two propositional formulae? Is the previous formula a tautology?

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

Exercise 3. Build the truth table of (p V q) ++ (~q → P), where p and q are two propositional
formulae? Is the previous formula a tautology?
. In cach case below, say whether the given
Exercise 4 (Ev.
statement is true for the universe (0, 1)- xERI0<x< I), and say whether it is true for the
universe [0, 1] (xER|0SIS1). For cach of the four cases, you should therefore give two true-
or-false answers.
a. Vx(3y(x > y))
b. Vxay(x2 y))
c. 3yVx(x> y))
d. ByVx(x2y))

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