Answered: Which among the following is a…

Which among the following is a tautology. A) ∼p ∨ ( p ∧ ∼q) B) ( p ∧ q) ∨ (∼p ∨ ( p ∧ ∼q)) C) p ∨ ( p ∧ ∼q) D) ( p ∧ ∼q) ∧ (∼p ∨ q)

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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Question

Which among the following is a tautology.

A) ∼p ∨ ( p ∧ ∼q)

B) ( p ∧ q) ∨ (∼p ∨ ( p ∧ ∼q))

C) p ∨ ( p ∧ ∼q)

D) ( p ∧ ∼q) ∧ (∼p ∨ q)

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