[[Image:Hilbert.JPG|120px|left|David Hilbert]]

'''[[David Hilbert]]''' ([[January 23]], [[1862]], [[Wehlau]], [[Prussia]]–[[February 14]], [[1943]], [[Göttingen]], [[Germany]]) was a [[Germany|German]] [[mathematician]], recognized as one of the most influential mathematicians of the 19th and early 20th centuries. He established his reputation as a great mathematician and scientist by inventing or developing a broad range of ideas, such as [[invariant theory]], the [[Hilbert's axioms|axiomization of geometry]], and the notion of [[Hilbert space]], one of the foundations of [[functional analysis]]. His students supplied significant portions of the mathematic infrastructure required for [[quantum mechanics]] and [[general relativity]]. He is one of the founders of [[proof theory]], [[mathematical logic]], and the distinction between mathematics and [[metamathematics]], and warmly defended [[Cantor]]'s set theory and transfinite numbers. A famous example of his world leadership in [[mathematics]] is his 1900 presentation of a [[Hilbert's problems|set of problems]] that set the course for much of the mathematical research of the 20th century.

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