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IEVref: | 102-04-08 | ID: | |

Language: | en | Status: Standard | |

Term: | parallel, adj | ||

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Definition: | qualifies in a point space: - a straight line with respect to a coplanar straight line when they have no common point or when they are merged;
- a straight line with respect to a plane when the plane contains a line parallel to the given line;
- a plane with respect to another plane when any line in one plane has a parallel line in the other plane
Note 1 to entry: Parallelism is an equivalence relation for two lines or for two planes. Note 2 to entry: Usual wordings for lines are "a line A is parallel to line B", or "lines A and B are parallel", or " A and B are parallel lines". Similar wordings are used for the other cases. | ||

Publication date: | 2008-08 | ||

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Internal notes: | 2017-02-20: Editorial revisions in accordance with the information provided in C00019 (IEV 102) - evaluation. JGO | ||

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VT remarks: | |||

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Domain5: |

- a straight line with respect to a coplanar straight line when they have no common point or when they are merged;
- a straight line with respect to a plane when the plane contains a line parallel to the given line;
- a plane with respect to another plane when any line in one plane has a parallel line in the other plane

Note 1 to entry: Parallelism is an equivalence relation for two lines or for two planes.

Note 2 to entry: Usual wordings for lines are "a line A is parallel to line B", or "lines A and B are parallel", or " A and B are parallel lines". Similar wordings are used for the other cases.