bn:00031794n
Noun Concept
Categories: Non-Euclidean geometry, Articles with short description, Foundations of geometry, Elementary geometry, History of geometry
EN
Euclid's fifth axiom  parallel axiom  parallel postulate  5th postulate  Euclid's 5th postulate
EN
Only one line can be drawn through a point parallel to another line WordNet 3.0
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EN
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)