Tautology

Look up tautology in Wiktionary, the free dictionary.
Tautology may refer to:
- Tautology (language), redundant statements in literature and rhetoric
- Tautology (logic), in formal logic, a statement that is true in every possible interpretation
- Tautology (rule of inference), a rule of replacement for logical expressions
See also[edit]
- Pleonasm
- Redundancy (disambiguation)
- Tautological (disambiguation)
- Tautonym, a scientific name of a species in which both parts of the name have the same spelling