Q3 Let U = {5, 6 }, write an equivalent to the following assertions: 3x P ( x ) v - Vx Q ( x ) Q4. Ex. : letU = I, and N (x): " E (x): O (x): P (x): x is a nonnegative integer x is even " ; x is odd " ; x is prime " express the following assertions in logical notation The only even and prime must be two For all numbers, if an integer is not even, then it is odd

Q3 Let U = {5, 6 }, write an equivalent to the following assertions: 3x P ( x ) v - Vx Q ( x ) Q4. Ex. : letU = I, and N (x): " E (x): O (x): P (x): x is a nonnegative integer x is even " ; x is odd " ; x is prime " express the following assertions in logical notation The only even and prime must be two For all numbers, if an integer is not even, then it is odd

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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Q3 Let U = { 5, 6 }, write an equivalent to the following
assertions:
3x P ( x ) v - Vx Q ( x )
Q4.
Ex. : let U
N (x):
E (x):
O (x):
P (х):
I, and
" x is a nonnegative integer "
x is even " ;
x is odd " ;
x is prime
express the following assertions in logical notation
The only even and prime must be two
For all numbers, if an integer is not even, then it is odd

Q1.
Let U
N, then express the following assertions in logical
notation_and give a truth value for each of them:
а.
For some x and some y, x / y = y
b.
For all x and all y, x * y = y * x
Q2. Find the negation of the following assertions:
3x3yVz [x+y + z]

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