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YiFan

Saying hi from Singapore :)

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  • Member for 1 year, 5 months
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Top Posts (4) All Questions Answers | Votes Newest

15 What to do with blatantly false answers? Feb 3
10 What's with these “sangaku” geometry problems? Nov 22 '18
4 Closing a question for being too basic Feb 9
3 Difficulty of getting review badges Apr 8

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