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Search options questions only not deleted user 6129

Questions that are about research in mathematics, or about the job of a research mathematician, without being mathematical problems or statements in the strictest sense. Do not use this tag for easy or supposedly easy mathematical questions.

110 votes
10 answers
30k views

What is the oldest open problem in mathematics?

What is the oldest open problem in mathematics? By old, I am referring to the date the problem was stated. Browsing Wikipedia list of open problems, it seems that the Goldbach conjecture (1742, every …
coudy's user avatar
  • 18.7k
7 votes
0 answers
311 views

A citation from Dieudonné about existence, classification and construction

I am looking for an exact quote from Jean Dieudonné saying more or less that there are three kinds of important problems in mathematics: problems of existence, classification and construction. The q …
coudy's user avatar
  • 18.7k