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- If a mathematician has an Erdős number of 2, what does it mean?
Question 1:
If a mathematician has an Erdős number of 2, what does it mean?
A. The mathematician was a student of a student of Paul Erdős.
B. The mathematician was a student of Paul Erdős.
C. The mathematician has written a paper with someone who has written an academic paper with Paul Erdős.
D. The mathematician has written an academic paper with Paul Erdős.
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