What is it called when you say something that contradicts itself?

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Tags

1. #paradox
2. #cretans
3. #cretan
4. #humorous
5. #paradoxes
6. #oxymorons
7. #seems
8. #intended
9. #military
10. #describe
11. #contradictory
12. #contradicts
13. #music
14. #hypocritical
15. #statements
16. #liars
17. #itself
18. #oxymoron
19. #something
20. #sometimes
21. #intelligence
22. #phrase