Law of excluded middle
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In logic, The law of excluded middle, also known as the Principle of excluded middle or excluded middle is the principle that for any proposition, either that proposition is true, or its negation is. The principle can be expressed in either a logical or a semantical form. The semantical form uses the non-logical word "true", as above.
See also
- Laws of thought
- Logical graphs – Graphical syntax for propositional logic
- Peirce's law – Another way of turning intuition classical
- Law of bivalence
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