Mathematician Crossword

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Across
  1. 6. Sofya privately studied under him
  2. 7. A Russian mathematician and advocate
Down
  1. 1. The university Sofya studied at
  2. 2. The award of the French Academy of sciences
  3. 3. The capital of Russia and where Sofya grew up
  4. 4. The month Sofya was born in
  5. 5. The person Sofya married for convenience