Mathematicians

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Across
  1. 3. magnets
  2. 4. generality of algebra
  3. 7. father of geometry
  4. 8. triangles
  5. 9. Indian autodidact
  6. 10. Italian mathematician
  7. 11. greek philosopher
  8. 14. fibonacci number
  9. 16. Norwegian mathematician
  10. 17. french lawyer
  11. 19. gravity
  12. 20. German philosopher
Down
  1. 1. gas laws
  2. 2. elliptic functions
  3. 5. the stupidest name ever
  4. 6. french philosopher
  5. 12. german number theory
  6. 13. greek teacher
  7. 15. set theory
  8. 18. Swiss physicist