3. Let D be the set of all difficult midterms and L be the set of all long midterms. (a) Translate into first order logic: "If every difficult midterm is short, then some long midterm is easy." (b) Negate your answer in part (a). Carry the all the way through. 7 (c) Express your answer in part (b) in English.

3. Let D be the set of all difficult midterms and L be the set of all long midterms. (a) Translate into first order logic: "If every difficult midterm is short, then some long midterm is easy." (b) Negate your answer in part (a). Carry the all the way through. 7 (c) Express your answer in part (b) in English.

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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