1. Let p, q, and r be the statements p: I finish my assignment before 2:00 pm today q: I go to the gym today r: It is raining today   (a) Invent a compound statement that uses all three of the proposi- tions p, q, and r as well as whatever logical connectives you choose. (b) Write an English sentence that corresponds to the statement you constructed in (a). (c) Make a truth table for the statement you constructed in (a).

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
Question
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1. Let p, q, and r be the statements
p: I finish my assignment before 2:00 pm today
q: I go to the gym today
r: It is raining today

 

(a) Invent a compound statement that uses all three of the proposi-
tions p, q, and r as well as whatever logical connectives you choose.

(b) Write an English sentence that corresponds to the statement you
constructed in (a).

(c) Make a truth table for the statement you constructed in (a).

Expert Solution
Step 1

p: I finish my assignment before 2:00pm today.

q: I go to the gym today.

r: It is raining today.

These are three statements denoted as p,q, and r.

PART A)The compound statement that uses all three propositions p,q, and r that is combined using logical connectives is written below=>

r --> p V q 

The above compound statement uses "-->" (implies) logical connective which is used for representing the "if then else" condition.

The logical connective "V" is known as the OR operator which connects two statements p and q.

IF r is true THEN either p is true OR  q is true.

 

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