3. Consider the Tarski world shown below:dLet Triangle(x), Circle(x), and Square(x) mean “x is a triangle," "x is a circle," and"x is a square"; let Blue(x), Gray(x), and Black(x) mean “x is blue," “x is gray,"and "x is black"; let RightOf(x, y), Above(x, y), and SameColorAs(x, y) mean “x isto the right of y," “x is above y," and "x has the same color as y"; and use thenotation x = y to denote the predicate “x is equal to y". Let the common domainD of all variables be the set of all the objects in the Tarski world.Each of the following statements is true or false. And explain why.(a) For all squares x there is a circle y such that x and y have different colors andy is above x.(b) There is a triangle x such that for all circles y, y is above x.

Option B will be the TRUE Explanation : For all the triangle x there is a square y such that x and y…

Answered: Each of the following statements is…

Engineering

Computer Science

Each of the following statements is true or false. And explain why.

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

Literals

A literal in computer science is used to express a fixed value in source code. They cannot be modified. Almost all programs have these fixed values or literals.

Question

3. Consider the Tarski world shown below:
d
Let Triangle(x), Circle(x), and Square(x) mean “x is a triangle," "x is a circle," and
"x is a square"; let Blue(x), Gray(x), and Black(x) mean “x is blue," “x is gray,"
and "x is black"; let RightOf(x, y), Above(x, y), and SameColorAs(x, y) mean “x is
to the right of y," “x is above y," and "x has the same color as y"; and use the
notation x = y to denote the predicate “x is equal to y". Let the common domain
D of all variables be the set of all the objects in the Tarski world.
Each of the following statements is true or false. And explain why.
(a) For all squares x there is a circle y such that x and y have different colors and
y is above x.
(b) There is a triangle x such that for all circles y, y is above x.

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