Let p be the statement "I celebrate" and q be the statement "Bangladesh wins". [Hint: The following statements express p→q: “if p, then q”, “p implies q”, “if p, q”, “p only if q”, “only if q, p”, “p is sufficient for q”, “a sufficient condition for q is p”, “q if p”, “q whenever p”, “q when p”, “q is necessary for p”, “a necessary condition for p is q”, “q follows from p”, “q unless ¬p”] c). Which of the following expresses contrapositive of p→q?. 1. I am sad whenever Bangladesh loses. 2. Only if Bangladesh loses, I am sad. 3. I am sad only if Bangladesh loses. 5. A necessary condition for me to be sad is Bangladesh's loss.
Let p be the statement "I celebrate" and q be the statement "Bangladesh wins". [Hint: The following statements express p→q: “if p, then q”, “p implies q”, “if p, q”, “p only if q”, “only if q, p”, “p is sufficient for q”, “a sufficient condition for q is p”, “q if p”, “q whenever p”, “q when p”, “q is necessary for p”, “a necessary condition for p is q”, “q follows from p”, “q unless ¬p”] c). Which of the following expresses contrapositive of p→q?. 1. I am sad whenever Bangladesh loses. 2. Only if Bangladesh loses, I am sad. 3. I am sad only if Bangladesh loses. 5. A necessary condition for me to be sad is Bangladesh's loss.
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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Let p be the statement "I celebrate" and q be the statement "Bangladesh wins".
[Hint: The following statements express p→q:
“if p, then q”, “p implies q”, “if p, q”, “p only if q”, “only if q, p”, “p is sufficient for q”, “a sufficient condition for q is p”, “q if p”, “q whenever p”, “q when p”, “q is necessary for p”, “a necessary condition for p is q”, “q follows from p”, “q unless ¬p”]
c). Which of the following expresses contrapositive of p→q?.
1. I am sad whenever Bangladesh loses.
2. Only if Bangladesh loses, I am sad.
3. I am sad only if Bangladesh loses.
5. A necessary condition for me to be sad is Bangladesh's loss.
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