Please give me both question solution QUESTION 4Which of the following is a negation of the statementX(P(x)^¬Q(x)3X(P(x)^¬Qx))3X(P(x)v ¬QX))EX(P(x)^Qx))QUESTION 5What is the truth value of Vx(x2x)(a) If the domain of x is R?(b) If the domain of x is Z?Enter T for "truth" and F for "false".

The first question asks to find the negative of the first-order logic & the second question asks…

Answered: QUESTION 4 Which of the following is a…

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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1. Which of the following statements are true? (a) |N|=|Z| (b) |N|<|Z| (c) |Z|=א0 (d) |R|>|Z| 2. Which of the following statements are tautologies? (a) P → Q (b) P ∧ ¬P (c) P ∨ ¬P (d) P → P 3. The contrapositive equivalency of ¬Q → P is given by: (a) P → Q (b) Q → P (c) ¬P → Q (d) ¬Q→P

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QUESTION 4 Which of the following is a negation of the statement ((X)O^(X) dL)XA ((X)0L V (X)d)XA 3X(P(x)^ ¬Qx)) 3X(P(x)v ¬Qx)) 3X (P(x)^Qx)) QUESTION 5 What is the truth value of Vx(x2 (a) If the domain of x is R? (b) If the domain of x is Z? Enter T for "truth" and F for "false".