The world of mathematics is full of unreachable corners, where unsolvable problems live. Now, yet another has been exposed. In 1900, the eminent mathematician David Hilbert announced a list of 23 key ...
The original formed the first part of "Festschrift zur feier der enthüllung des Gauss-Weber-denkmals in Göttingen, Grundlagen der geometrie," with the additions made by the author in the French ...