Shear strength - Revision history

en>Snorlax Monster: I don't think a Wiktionary link is necessary here

2014-12-01T13:46:39Z

I don't think a Wiktionary link is necessary here

← Older revision		Revision as of 15:46, 1 December 2014
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en>RicardoVerdi: changed ex to e.g. & moved "(e.g. aluminium)" to immediately follow "ductile materials"

2014-02-09T07:48:39Z

changed ex to e.g. & moved "(e.g. aluminium)" to immediately follow "ductile materials"

← Older revision		Revision as of 09:48, 9 February 2014
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	~~{{Italic title}}~~		Hi there, I am Alyson Pomerleau and I believe it seems fairly great when you say it. Her family lives in Alaska but her husband desires them to move. The favorite pastime for him and his children [http://Medialab.Zendesk.com/entries/54181460-Will-You-Often-End-Up-Bored-Try-One-Of-These-Hobby-Ideas- email psychic readings] is fashion and he'll be beginning something else alongside with it. cheap psychic readings ([http://www.indosfriends.com/profile-253/info/ visit the next web site]) Invoicing is my profession.<br><br>Here is my web site psychic love readings ([http://Chorokdeul.Co.kr/index.php?document_srl=324263&mid=customer21 visit the up coming internet page])
	~~The '''Dissertatio de arte combinatoria''' is an early work by [[Gottfried Wilhelm Leibniz\|Gottfried Leibniz]] published in 1666 in [[Leipzig]].<ref>G.W. Leibniz~~, ~~''Dissertatio de arte combinatoria'', 1666, ''Sämtliche Schriften und Briefe'' (Berlin: ''Akademie Verlag'', 1923) A VI 1, p~~.~~163; ''Philosophische Schriften'' (Gerhardt) Bd~~. ~~IV S.30;</ref> It is an extended version of~~ his [~~[doctoral dissertation]], written before the author had seriously undertaken the study of mathematics.<ref name="Philosophie page 32">[[Gottfried Wilhelm Leibniz]]~~: Hauptschriften zur Grundlegung der Philosophie. Zur allgemeinen Charakteristik. Philosophische Werke Band 1. page 32. Translated by Artur Buchenau. Published, reviewed and added an introduction and notes by Ernst Cassirer. Publishing company of Felix Meiner. Hamburg. 1966, p.32.</ref> The booklet was reissued without Leibniz' consent in 1690, which prompted him to publish a brief explanatory notice in the [[Acta Eruditorum]].<ref>G.G.L. ''Ars Combinatoria'', Acta Eruditorum, Feb.~~, 1691, p~~.~~63<~~/~~ref> During the~~
	following years he repeatedly expressed regrets about its being circulated as he considered it immature.<ref>Leibniz complained to various correspondents, e.g., to Morell (1 October 1697) or to Meier (23 January 1699); see ''Akademie'' I.14, p. 548 or I.16, p. 540.</~~ref> Nevertheless it was a very original work and it provided the author the first glimpse of fame among the scholars of his time.~~

	~~The main idea behind the text is that of an [[alphabet of human thought]~~]~~, which~~ is ~~attributed to [[Descartes]]. All concepts are nothing but combinations of a relatively small number of simple concepts, just as words are combinations of letters. All truths may~~ be ~~expressed as appropriate combinations of concepts, which can in turn be decomposed into simple ideas, rendering~~
	~~the analysis much easier~~. ~~Therefore, this alphabet would provide a logic of invention, opposed to that of demonstration which was known so far. Since all sentences are composed of a subject and a predicate, one might~~

	* Find all the predicates which are appropriate to a given subject, or
	* Find all the subjects which are convenient to a given predicate.

	~~For this, Leibniz was inspired in the ''[[Ars Magna~~ (~~Ramon Llull)\|Ars Magna]]'' of~~ [~~[Ramon Llull]], although he criticized this author because of the arbitrariness of his categories and his indexing~~.

	~~Leibniz discusses in this work some combinatorial concepts~~. ~~He had read [[Clavius\|Clavius']] comments to~~ the ~~[[Tractatus de Sphaera]] of [[Sacrobosco]~~], and some other contemporary works. He introduced the term ''variationes ordinis'' for the permutations, ''combinationes'' for the combinations of two elements, ''con3nationes'' (shorthand for ''conternationes'') ~~for those of three elements, etc. His general term for combinations was ''complexions''~~. ~~He found the formula~~

	:<~~math~~>~~{n \choose r} = {n-1\choose r} + {n-1\choose r-1}~~<~~/math~~>

	~~which he thought was original.~~

	The first examples of use of his '''''ars combinatoria''''' are taken from law, the musical registry of an [[organ (music)\|organ]], and the [[Aristotle\|Aristotelian]] theory of generation of elements from the four primary qualities. But philosophical applications are of greater importance. He cites the idea of [[Hobbes]] that all reasoning is just a computation.

	~~The most careful example is taken from geometry, from where we shall give some definitions. He introduces the Class I concepts, which are primitive.~~

	~~;Class I: 1 point, 2 space, 3 included, [...] 9 parts, 10 total, [...] 14 number, 15 various [...]~~

	~~Class II contains simple combinations.~~

	~~;Class II.1: Quantity~~ is ~~14 των 9~~

	~~Where των means "of the"~~ (~~from {{lang-grc\|[~~[~~wikt:τῶν\|τῶν]]}}). Thus, "Quantity" is the number of the parts. Class III contains the ''con3nationes'':~~

	~~;Class III.1: Interval is 2.3.10~~

	~~Thus, "Interval" is the space included in total. Of course, concepts deriving from former classes may also be defined.~~

	~~;Class IV.1~~: ~~Line is 1~~/~~3 των 2~~

	~~Where 1~~/~~3 means the first concept of class III~~. ~~Thus, a "line" is the interval of (between) points~~.

	~~Leibniz compares his system to the Chinese and Egyptian languages, although he did not really understand them at this point~~. For him, this is a first step towards the [[Characteristica Universalis]], the perfect language which would provide a direct representation of ideas along with a calculus for the philosophical reasoning.

	~~As a preface, the work begins with a proof of the existence of God, cast in geometrical form, and based on the [[Argument from Motion]].~~

	==~~Notes==~~
	~~<references/>~~

	~~==References==~~
	*E.J. Aiton, ''Leibniz: A Biography''. Hilger, Bristol, 1985. ISBN 0-85274-470-6.

	~~{{Gottfried Wilhelm Leibniz}}~~
	~~{{DEFAULTSORT:Arte Combinatoria}}~~
	~~[[Category:Combinatorics]]~~
	~~[[Category:Philosophy of language literature]]~~
	~~[[Category:1666 books]]~~
	~~[[Category:Works by Gottfried Leibniz]~~]

64.47.214.68 at 21:04, 31 January 2014

2014-01-31T21:04:40Z

← Older revision		Revision as of 23:04, 31 January 2014
Line 1:		Line 1:
	~~Marvella~~ is ~~what you can call her but it~~'~~s not~~ the ~~most female title out there~~. ~~His family lives~~ in ~~South Dakota but his spouse wants them~~ to ~~move~~. ~~Supervising is my profession~~. ~~What~~ I ~~adore performing~~ is ~~playing baseball~~ but ~~I haven~~'~~t made a dime with it~~.<br><br>~~Also visit my website~~: ~~over~~ the ~~counter std test~~; ~~[http~~:~~//carnavalsite~~.~~com~~/~~demo-page-~~1/~~solid-advice-~~in-~~relation~~-to-~~yeast-infection/ click through the following internet site~~],		{{Italic title}}
			The '''Dissertatio de arte combinatoria''' is an early work by [[Gottfried Wilhelm Leibniz\|Gottfried Leibniz]] published in 1666 in [[Leipzig]].<ref>G.W. Leibniz, ''Dissertatio de arte combinatoria'', 1666, ''Sämtliche Schriften und Briefe'' (Berlin: ''Akademie Verlag'', 1923) A VI 1, p.163; ''Philosophische Schriften'' (Gerhardt) Bd. IV S.30;</ref> It is an extended version of his [[doctoral dissertation]], written before the author had seriously undertaken the study of mathematics.<ref name="Philosophie page 32">[[Gottfried Wilhelm Leibniz]]: Hauptschriften zur Grundlegung der Philosophie. Zur allgemeinen Charakteristik. Philosophische Werke Band 1. page 32. Translated by Artur Buchenau. Published, reviewed and added an introduction and notes by Ernst Cassirer. Publishing company of Felix Meiner. Hamburg. 1966, p.32.</ref> The booklet was reissued without Leibniz' consent in 1690, which prompted him to publish a brief explanatory notice in the [[Acta Eruditorum]].<ref>G.G.L. ''Ars Combinatoria'', Acta Eruditorum, Feb., 1691, p.63</ref> During the
			following years he repeatedly expressed regrets about its being circulated as he considered it immature.<ref>Leibniz complained to various correspondents, e.g., to Morell (1 October 1697) or to Meier (23 January 1699); see ''Akademie'' I.14, p. 548 or I.16, p. 540.</ref> Nevertheless it was a very original work and it provided the author the first glimpse of fame among the scholars of his time.

			The main idea behind the text is that of an [[alphabet of human thought]], which is attributed to [[Descartes]]. All concepts are nothing but combinations of a relatively small number of simple concepts, just as words are combinations of letters. All truths may be expressed as appropriate combinations of concepts, which can in turn be decomposed into simple ideas, rendering
			the analysis much easier. Therefore, this alphabet would provide a logic of invention, opposed to that of demonstration which was known so far. Since all sentences are composed of a subject and a predicate, one might

			* Find all the predicates which are appropriate to a given subject, or
			* Find all the subjects which are convenient to a given predicate.

			For this, Leibniz was inspired in the ''[[Ars Magna (Ramon Llull)\|Ars Magna]]'' of [[Ramon Llull]], although he criticized this author because of the arbitrariness of his categories and his indexing.

			Leibniz discusses in this work some combinatorial concepts. He had read [[Clavius\|Clavius']] comments to the [[Tractatus de Sphaera]] of [[Sacrobosco]], and some other contemporary works. He introduced the term ''variationes ordinis'' for the permutations, ''combinationes'' for the combinations of two elements, ''con3nationes'' (shorthand for ''conternationes'') for those of three elements, etc. His general term for combinations was ''complexions''. He found the formula

			:<math>{n \choose r} = {n-1\choose r} + {n-1\choose r-1}</math>

			which he thought was original.

			The first examples of use of his '''''ars combinatoria''''' are taken from law, the musical registry of an [[organ (music)\|organ]], and the [[Aristotle\|Aristotelian]] theory of generation of elements from the four primary qualities. But philosophical applications are of greater importance. He cites the idea of [[Hobbes]] that all reasoning is just a computation.

			The most careful example is taken from geometry, from where we shall give some definitions. He introduces the Class I concepts, which are primitive.

			;Class I: 1 point, 2 space, 3 included, [...] 9 parts, 10 total, [...] 14 number, 15 various [...]

			Class II contains simple combinations.

			;Class II.1: Quantity is 14 των 9

			Where των means "of the" (from {{lang-grc\|[[wikt:τῶν\|τῶν]]}}). Thus, "Quantity" is the number of the parts. Class III contains the ''con3nationes'':

			;Class III.1: Interval is 2.3.10

			Thus, "Interval" is the space included in total. Of course, concepts deriving from former classes may also be defined.

			;Class IV.1: Line is 1/3 των 2

			Where 1/3 means the first concept of class III. Thus, a "line" is the interval of (between) points.

			Leibniz compares his system to the Chinese and Egyptian languages, although he did not really understand them at this point. For him, this is a first step towards the [[Characteristica Universalis]], the perfect language which would provide a direct representation of ideas along with a calculus for the philosophical reasoning.

			As a preface, the work begins with a proof of the existence of God, cast in geometrical form, and based on the [[Argument from Motion]].

			==Notes==
			<references/>

			==References==
			*E.J. Aiton, ''Leibniz: A Biography''. Hilger, Bristol, 1985. ISBN 0-85274-470-6.

			{{Gottfried Wilhelm Leibniz}}
			{{DEFAULTSORT:Arte Combinatoria}}
			[[Category:Combinatorics]]
			[[Category:Philosophy of language literature]]
			[[Category:1666 books]]
			[[Category:Works by Gottfried Leibniz]]

en>Aeusoes1: nix unnecessary "term used to describe" in lede

2012-08-12T01:45:48Z

nix unnecessary "term used to describe" in lede

New page

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