Dictionary.com
Thesaurus.com

excluded middle

British  

noun

  1. logic the principle that every proposition is either true or false, so that there is no third truth-value and no statements lack truth-value

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Law of the excluded middle a logical law that states that for any statement, either that statement or its negation is true.

From Textbooks • Jun. 15, 2022

If you accept that all statements must be either true or false and you also accept the law of noncontradiction, then you must accept the law of the excluded middle.

From Textbooks • Jun. 15, 2022

Define the laws of noncontradiction and the excluded middle.

From Textbooks • Jun. 15, 2022

How does the law of noncontradiction logically imply the law of the excluded middle?

From Textbooks • Jun. 15, 2022

Mâyâ therefore is a category which baffles the ordinary logical division of existence and non-existence and the principle of excluded middle.

From A History of Indian Philosophy, Volume 1 by Dasgupta, Surendranath