bn:00800747n
Noun Concept
Categories: Foundations of geometry, Hilbert's problems
EN
Hilbert's fourth problem
EN
In mathematics, Hilbert's fourth problem in the 1900 list of Hilbert's problems is a foundational question in geometry. Wikipedia
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EN
In mathematics, Hilbert's fourth problem in the 1900 list of Hilbert's problems is a foundational question in geometry. Wikipedia
One of twenty-three, asking to construct all metric spaces where lines resemble those on a sphere Wikidata