Pronunciation: /kənˈdɪ ʃən/ ?

A condition is statement that must be true for a given statement or theorem to hold.[1] In the math statement 'y=1/x, x≠0', the inequality x≠0 is a condition that must hold for the statement y=1/x to be true. Notice that, in this case, 1 is being divided by x. Since division by zero is undefined, x can not be zero, hence x≠0.

A statement is conditional if its truth depends on a condition.


  1. condition. WordNet. Princeton University. (Accessed: 2011-01-08).
  2. Duncan, William H.. The elements of logic, pp 130-131. Whiting, Backus & Whiting, 1804. (Accessed: 2010-01-18).
  3. Atwater, Lymon H. Manual of Elementary Logic, revised edition, pg 92. J. B. Lippincott Company, 1895. (Accessed: 2010-01-18).

More Information

  • McAdams, David. Criterion. All Math Words Encyclopedia. Life is a Story Problem LLC. 2009-03-12.

Cite this article as:

Condition. 2010-01-18. All Math Words Encyclopedia. Life is a Story Problem LLC.


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Revision History

2010-01-18: Added "References" (McAdams, David.)
2008-12-01: Added definition of 'conditional' (McAdams, David.)
2008-03-25: Changed More Information to match current standard (McAdams, David.)
2007-07-12: Initial version (McAdams, David.)

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