Self-contradiction
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Self-contradiction or self-contradictory can refer to:
- Auto-antonym, a word with multiple meanings of which one is the reverse of another
- Formal fallacy, a pattern of reasoning rendered invalid by a flaw in its logical structure
- Oxymoron, a figure of speech that juxtaposes concepts with opposing meanings within a word or phrase that creates an ostensible self-contradiction
- Paradox, a logically self-contradictory statement or a statement that runs contrary to one's expectation
- Self-refuting idea, idea or statement whose falsehood is a logical consequence of the original