Tiscali Quicklinks. Please visit our Accessibility Page for a list of the Access Keys you can use to find your way around the site, skip directly to the main navigation, to the page content, or to more links within reference.

Hilbert attempted to put mathematics on a logical foundation through defining it in terms of a number of basic principles, which Kurt Gödel later showed to be impossible. In 1900 Hilbert proposed a set of 23 problems for future mathematicians to solve, and gave 20 axioms to provide a logical basis for Euclidean geometry.
Blue represents the sky. The golden sun symbolizes the country's hopes for the future. Effective date: 4 June 1992.
>>