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Search the World's Largest Database of Information Science & Technology Terms & Definitions

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Below please find a list of definitions for the term that
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What is Tautology

Chapter 705

Encyclopedia of Information Science and Technology, Third Edition

A logical formula is termed to be a tautology (valid) if and only if it is true for all the possible values of its variables. In other words, a formula is a tautology if its negation (¬F) is unsatisfiable. This relationship between satisfiablity and tautology is one of the foundational principles of using SAT solving for equivalence checking.

Published in Chapter:

Formal Verification Methods

Osman Hasan (School of Electrical Engineering and Computer Science (SEECS), National University of Sciences and Technology (NUST), Pakistan) and Sofiène Tahar (Concordia University, Canada)

Source Title: Encyclopedia of Information Science and Technology, Third Edition

DOI: 10.4018/978-1-4666-5888-2.ch705

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