excluded middle

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

Example Sentences

The absolute fact comes under the Law of Excluded Middle, but a personal opinion is not an absolute fact.

From Project Gutenberg

From this law of thought follows directly the third, viz., the Principle of the Excluded Middle.

From Project Gutenberg

With these three intellectual laws of identity, of contradiction, and of the excluded middle, formal logic begins.

From Project Gutenberg

These rules are very far from being self-evident, any more than the maxims of Contradiction and of the Excluded Middle.

From Project Gutenberg

If there is a mean, the conditioned, and the two extremes, then "excluded middle" has nothing to do with the matter at all.

From Project Gutenberg