意味 |
Porismとは 意味・読み方・使い方
追加できません
(登録数上限)
Wiktionary英語版での「Porism」の意味 |
porism
語源
From Ancient Greek πόρισμα (pórisma, “a deduction from a previous demonstration”).
名詞
porism (複数形 porisms)
- (geometry, number theory) A proposition affirming the possibility of finding such conditions as will render a certain determinate problem indeterminate or capable of innumerable solutions.
- A corollary.
- 1845, Robert Potts, Euclid's Elements
- Porism: something between a problem and a theorem or that in which something is proposed to be investigated.
- A Porism is a proposition in which it is proposed to demonstrate that some one thing, or more things than one, are given, to which, as also to each of innumerable other things, not given indeed, but which have the same relation to those which are given, it is to be shewn that there belongs some common affection described in the proposition.
- 1845, Robert Potts, Euclid's Elements
- 1893, Florian Cajori, A History of Mathematics
- The term porism is vague in meaning. The aim of a porism is not to state some property or truth, like a theorem, nor to effect a construction, like a problem, but to find and bring to view a thing which necessarily exists with given numbers or a given construction, as, to find the centre of a given circle, or to find the G.C.D. of two given numbers.
- 1845, Robert Potts, Euclid's Elements
参照
- Porism: "A proposition affirming the possibility of finding one or more of the conditions of an indeterminate theorem." - Dugald Stewart
- Porism: "A proposition affirming the possibility of finding such conditions as will render a certain problem indeterminate or capable of innumerable solutions." - John Playfair
- porism on Wikipedia.
- porism at OneLook Dictionary Search
Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for porism in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)
|
意味 |
|
Porismのページの著作権
英和・和英辞典
情報提供元は
参加元一覧
にて確認できます。
Text is available under Creative Commons Attribution-ShareAlike (CC-BY-SA) and/or GNU Free Documentation License (GFDL). Weblio英和・和英辞典に掲載されている「Wiktionary英語版」の記事は、Wiktionaryのporism (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。 |
|
Text is available under Creative Commons Attribution-ShareAlike (CC-BY-SA) and/or GNU Free Documentation License (GFDL). Weblio英和・和英辞典に掲載されている「Wikipedia英語版」の記事は、WikipediaのPorism (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。 |
ピン留めアイコンをクリックすると単語とその意味を画面の右側に残しておくことができます。 |
ログイン |
Weblio会員(無料)になると 検索履歴を保存できる! 語彙力診断の実施回数増加! |
「Porism」のお隣キーワード |
weblioのその他のサービス
ログイン |
Weblio会員(無料)になると 検索履歴を保存できる! 語彙力診断の実施回数増加! |