Postulates: 1. If Mary watches the news, she becomes depressed. 2. Zach will ask Mary for a date if she buys a new dress. 3. Mary gets sick when she eats ice cream. 4. When Mary is depressed, she buys a new dress. 5. When Mary stays home, she watches the news. 6. If Mary is sick, she stays home from school.

Postulates: 1. If Mary watches the news, she becomes depressed. 2. Zach will ask Mary for a date if she buys a new dress. 3. Mary gets sick when she eats ice cream. 4. When Mary is depressed, she buys a new dress. 5. When Mary stays home, she watches the news. 6. If Mary is sick, she stays home from school.

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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