The domain of discourse for this problem is a group of three people who are working on a project. To make notation easier, the people are numbered 1, 2, 3. The predicate M(x, y) indicates whether x has sent an email to y, so M(2, 3) is read "Person 2 has sent an email to person 3." The table below shows the value of the predicate M(x, y) for each (x, y) pair. The truth value in row z and column y gives the truth value for M(x, y). (b) Vz3y -M(r, M) M 1 2 3 Determine if the quantified statement is true or false. Justify your an- swer. (a) Vævy (x+y) → M(x, y)) (c) Vy M(x, y) 1 2 3 TIT T TF T| TTF

The domain of discourse for this problem is a group of three people who are working on a project. To make notation easier, the people are numbered 1, 2, 3. The predicate M(x, y) indicates whether x has sent an email to y, so M(2, 3) is read "Person 2 has sent an email to person 3." The table below shows the value of the predicate M(x, y) for each (x, y) pair. The truth value in row z and column y gives the truth value for M(x, y). (b) Vz3y -M(r, M) M 1 2 3 Determine if the quantified statement is true or false. Justify your an- swer. (a) Vævy (x+y) → M(x, y)) (c) Vy M(x, y) 1 2 3 TIT T TF T| TTF

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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Concept explainers

Bare bones programming language

Bare bones programming language is a low-level programming language that gives a detailed stepwise description of a program. It has a tight program design and in-depth understanding of the toolchain. It is based on the target environment and is used for safe coding practices. C programming language is a type of bare bones programming language.

Question

PROBLEM 3
The domain of discourse for this problem is a group of three people who are
working on a project. To make notation easier, the people are numbered 1, 2, 3.
The predicate M(x, y) indicates whether x has sent an email to y, so M(2, 3) is
read "Person 2 has sent an email to person 3." The table below shows the value of
the predicate M(x, y) for each (x, y) pair. The truth value in row z and column
y gives the truth value for M(x, y).
swer.
M
1
2
Determine if the quantified statement is true or false. Justify your an-
(b) Vzy M(x, y)
3
(a) Vrvy (ry) → M(x, y))
(c) Vy M(x, y)
123
TTT
TFT
TT F

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