a German mathematician and one of the most influential mathematicians of the 19th and early 20th centuries

David Hilbert (/ˈhɪlbərt/; German: [ˈdaːvɪt ˈhɪlbɐt]; 23 January 1862 – 14 February 1943) was a German mathematician, one of the most influential mathematicians of the 19th and early 20th centuries.

The German mathematician

In 1900 the German mathematician David Hilbert observed that proving the consistency of these axioms was one of the key unsolved problem in maths.

a 20th century mathematician

David Hilbert is a 20th century mathematician, and was chosen as the judge because David Hilbert is famous in part for Hilbert's Problems.

a German mathematician, logician, and philosopher of mathematics

David Hilbert (Königsberg,[1] Prussia, 23 January 1862 –Göttingen, Germany, 14 February 1943) was a German mathematician, logician, and philosopher of mathematics.

a German mathematician born in 1862 who made pioneering contributions to a wide range of mathematical fields, including algebraic number theory, the calculus of variations, and quantum mechanics

David Hilbert David Hilbert was a German mathematician born in 1862 who made pioneering contributions to a wide range of mathematical fields, including algebraic number theory, the calculus of variations, and quantum mechanics.

The mathematician

There was some precedent for doing this: In 1900 the mathematician David Hilbert proposed twenty-three problems that set much of the agenda for mathematics in the twentieth century.

a German mathematician whose research and study of geometry, physics, and algebra revolutionized mathematics

David Hilbert was a German mathematician whose research and study of geometry, physics, and algebra revolutionized mathematics and went on to introduce the mathematic and scientific community with a series of mathematical equations that have yet to be solved.

a famous German mathematician who developed theories in number and geometry

David Hilbert (1862-1943) was a famous German mathematician who developed theories in number and geometry.

The famous mathematician

The famous mathematician David Hilbert was the first to use the term eigen (meaning ‘own’ or ‘peculiar to’) for a non-zero vector on which, when a particular linear transformation is applied, may change in length, but not in direction.

a German mathematician who challenged Galileo Galilei's 20th century colleagues to devote themselves to 23 mathematics problems

David Hilbert(1862-1943) was a German mathematician who challenged Galileo Galilei's 20th century colleagues to devote themselves to 23 mathematics problems.