In the paper we generalize the while-rule in Hoare calculus to an infinite one and then present a sufficient condition much weaker than the expressiveness for Cook'2 relative completeness theorem with respect to our new axiomatic system.

程序推理使用的抽象機(jī)器與物理機(jī)器的差距降低了推理的精確度，為了縮小這個(gè)差距欧美精品永久在线观看，本文提出了一個(gè)帶位級(jí)別抽象的新抽象機(jī)，在這個(gè)機(jī)器里，二進(jìn)制整數(shù)以純語(yǔ)法的方式被表示成位矢量而不是非負(fù)整數(shù)国产一级特级黄色网站。

Metaphysics can be distinguished for abstract and concrete metaphysics. The origin 、resource、whole and world prospect of language are different kinds of metaphysics. Their same character lies in different understanding about existence. The concrete understanding about existence requires that the concern on existence relates to the existence of man, overcome the separation between essence and appearance, facilitate time and existence99九九免费精品、existence and existencer. The concrete understanding on existence consists concrete metaphysics.

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There is some Chinese tradition in works of Xieda, esp. ancient characters. Chinese ancient characters are hieroglyphic, which abstract from life. Xieda transfers some factors of hieroglyph into his works with creativity. What is called to find the origin of China or the orient is to find the thinking pattern of this nation.

我在解讀的過程中丝袜日韩无码激情视频，覺得還是有一些中國(guó)傳統(tǒng)的東西国产图片大全综合视频，尤其是上古的文字，如金文美女做a、甲骨等這一類古文字的形態(tài)欧美精品观看视频免费，中國(guó)的古文字是以象形文字為主的，而象形文字實(shí)際上是從生活當(dāng)中抽象出來的日日干日日射日日操，這個(gè)抽象的過程實(shí)際上已經(jīng)是非常精煉的樱桃视频iosapp，在中國(guó)古代，文字就是一個(gè)最直接的抽象藝術(shù)经典在线视频日韩精品免费播放，燮達(dá)把它轉(zhuǎn)化過來91国在线视屏，轉(zhuǎn)化到他的作品當(dāng)中，卻又不是很機(jī)械的模仿日韩国产欧美免午夜网，而是把它的一些因素轉(zhuǎn)化過來一本大道香蕉8中文在线视频，使得作品有這種象形文字的感覺。

R.D. Hinshelwood, 'A Dictionary of Kleinian Thought'里,作者從Kleinian的觀點(diǎn),對(duì)於Internal reality (pp.330-331)與Internal object pp

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From these sweet, bitter, sour objects, sweetness, bitterness, sourness, are abstracted. Once abstracted they can be reapplied;…… For example an emotional experience is associated with the breast, in which the infant feels that there is an object existing independently of itself on which it can depend for satisfaction of its feelings of hunger; assuming a capacity for abstraction, the infant can feel that from the total experience he can detach an element which is a belief that an object exists that can satisfy his needs. The concrete statement might be: a breast exists that can be depended on to satisfy his hunger for food; abstraction from this might be: there is a something that can and does give him what he wants when he wants it. Bion,

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This thesis investigates the profile extraction and shape optimization on the result of topology optimization of planar compliant mechanisms. The main context includes the following work:(1) summarizing and analyzing the recent research status, some harvest and unsolved problems;(2) analyzing the conceptual design of planar path-generating compliant mechanisms and its mathematical model and tools;(3) Modifying the method of density contour as the method of profile extraction, and developing a method to optimize the density function in the profile extraction according to the requirement of the design of compliant mechanism;(4) developing a method to abstract the compliant mechanism into a form of links and joints by using the principle of connectivity on topology;(5) developing a method of shape optimization of planar path-generating compliant mechanisms, by representing the profile of the abstracted compliant mechanism as simple curves such as straight lines and arcs, establishing the models of the size optimization of the parameters of these curves, so that the compliant mechanism has a machinable shape;(6) At last, proving the feasibleness and effectiveness of the design method by making simulation design and validating it in FEA software.

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Although it is possible to have variables and values whose compile-time types are abstract, such variables and values will necessarily either be null or contain references to instances of nonabstract classes derived from the abstract types

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The description of an algorithm may talk of abstract objects such as integers, reals, strings, sets, stacks, graphs, and trees; abstract operations such as "sort the list,""pop the stack," or "trace a path"; and abstract relationships such as greater than, prex, subset, connected, and child.

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The real existence of this necessarily abstract subject(it is abstract because it is uniquely modeled on the paradigm of the subject of knowledge that is, on who sends-receives denotative statements with truth-value to the exclusion of other language games) depends on the institutions...."

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The purpose of this study was to investigate the effects of PCDC instruction on an eighth-grade underachievement class.

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