Across
- 6. Mysterious puzzle
- 7. Witty concise saying
- 11. Art of persuasive speaking
- 13. Reads same both ways
- 14. Assumption for reasoning
- 15. Vocabulary of a language
Down
- 1. Deductive reasoning form
- 2. Origin of an artifact
- 3. Obvious truth
- 4. Study of being
- 5. Proposition proved by logic
- 8. Self-evident truth
- 9. Established belief
- 10. Logical argument method
- 12. Deep scholarly knowledge