Let P(x,y) be the statement “x and y work at the same company” and Q(x,y) be the statement “x and y uses the same programming language”. Which of the following sentences expressses ∀x∃y((x≠y)∧P(x,y)∧Q(x,y))? 1. For all companies, there exist two employees who uses the same language. 2. For all employees using the same languages, there exist another employee who work at his company. 3. For all employees of all companies, there exist another employee who uses the same language. 4. For all employees, there exist another employee in the same company who uses the same language.
Let P(x,y) be the statement “x and y work at the same company” and Q(x,y) be the statement “x and y uses the same programming language”. Which of the following sentences expressses ∀x∃y((x≠y)∧P(x,y)∧Q(x,y))? 1. For all companies, there exist two employees who uses the same language. 2. For all employees using the same languages, there exist another employee who work at his company. 3. For all employees of all companies, there exist another employee who uses the same language. 4. For all employees, there exist another employee in the same company who uses the same language.
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
Related questions
Question
Let P(x,y) be the statement “x and y work at the same company” and Q(x,y) be the statement “x and y uses the same
1. For all companies, there exist two employees who uses the same language.
2. For all employees using the same languages, there exist another employee who work at his company.
3. For all employees of all companies, there exist another employee who uses the same language.
4. For all employees, there exist another employee in the same company who uses the same language.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Recommended textbooks for you
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education