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平行公设
píng​xíng​gōng​shè

parallel postulate

Definitions Defs Origin Strokes Stroke Words Sentences Sents
平行公设 (平行公設) píng​xíng​gōng​shè
parallel postulate
The fifth postulate of Euclidean geometry, which states that exactly one line can be drawn through a given point parallel to a given line.

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