bn:00031794n
Noun Concept
Categories: Non-Euclidean geometry, Articles with short description, Foundations of geometry, Elementary geometry, History of geometry
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Euclid's fifth axiom  parallel axiom  parallel postulate  5th postulate  Euclid's 5th postulate
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Only one line can be drawn through a point parallel to another line WordNet 3.0
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Only one line can be drawn through a point parallel to another line WordNet 3.0 & Open English WordNet
In geometry, the parallel postulate, also called Euclid's fifth postulate because it is the fifth postulate in Euclid's Elements, is a distinctive axiom in Euclidean geometry. Wikipedia
An axiom of Euclidean geometry equivalent to the statement that, given a straight line L and a point P not on the line, there exists exactly one straight line parallel to L that passes through P; a variant of this axiom, such that the number of lines parallel to L that pass through P may be zero or more than one. Wiktionary
Axiom of Euclidean geometry. Wiktionary (translation)
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