Pronunciation: /dɪsˈ pruf/ Explain

A disproof is a proof that a mathematical statement is false.[1] A disproof must take the same form and pass the same rigorous review as a proof. For many untrue claims, it is sufficient to find a single counterexample.


  1. Jones, Adam Leroy. Logic:: Inductive And Deductive An Introduction To Scientific Method. pg 166. Kessinger Publishing. April 30, 2004. Buy the book

More Information

  • Counterexample. allmathwords.org. All Math Words Encyclopedia. Life is a Story Problem LLC. 3/12/2009. http://www.allmathwords.org/en/c/counterexample.html.

Cite this article as:

McAdams, David E. Disproof. 7/4/2018. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/d/disproof.html.

Revision History

7/4/2018: Removed broken links, updated license, implemented new markup, implemented new Geogebra protocol. (McAdams, David E.)
1/11/2010: Added "References". (McAdams, David E.)
7/11/2008: Added text on counterexample. (McAdams, David E.)
6/7/2008: Initial version. (McAdams, David E.)

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