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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 porism
 不定設題;系論

From: Webster's Revised Unabridged Dictionary (1913)

 Po·rism n.
 1. Geom. A proposition affirming the possibility of finding such conditions as will render a certain determinate problem indeterminate or capable of innumerable solutions.
 2. Gr. Geom. A corollary.
 Note: ☞ Three books of porisms of Euclid have been lost, but several attempts to determine the nature of these propositions and to restore them have been made by modern geometers.
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