LABYRINTH OF LOGIC

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Across
  1. 3. Balanced proportions
  2. 5. Reasoning system
  3. 9. Mathematical statement
  4. 10. Step-by-step solution
  5. 11. Light-splitting shape
  6. 13. Never-ending pattern
  7. 14. Interconnected system
  8. 15. Predictable arrangement
Down
  1. 1. Problem to solve
  2. 2. Secret code system
  3. 4. Proven mathematical statement
  4. 6. Apparent disorder
  5. 7. Contradictory truth
  6. 8. Path for electric flow
  7. 12. Complex puzzle path