查询词典 propositional logic

This paper introduced the some theories of propositional logic, and gave the Computer implementation of the propositional logic calculations based on VC++.

本文在对数理逻辑领域的命题演算课题进行理论研究的基础上，对命题式的真值计算和一阶谓词命题式的前束范式化简进行了基于 VC++平台的编程实现。

The concept of relative Γ-tautology degree of formulas in four important propositional logics, Lukasiewicz logic, L(superscript *) logic, Gdel logic and product logic, has been proposed, and basic properties of it are obtained.

基于广义重言式理论，在四种重要的命题逻辑系统Lukasiewicz系统，L系统，Gdel系统和Ⅱ系统中，引入了公式的相对Γ-重言度概念，给出了相对Γ-重言度的若干性质。

With the background of application of fuzzy control techniques to a rather typical complex control system, gas-burning water heater, theories, applications and techniques of fuzzy information processing have been studies. The obtained results include:(1) For lattice-valued logic systems based on lattice implication algebras, two dynamical lattice-valued propositional logic Lvpl and lattice-valued first-order logic Lvfl have been constructed, and some theories and methods of fuzzy reasoning have been proposed based on fuzzy set theory and multi-valued logic.(2) Some methods for designing and optimizing fuzzy control systems and some corresponding control algorithms have been proposed, and some new theories and methods for fuzzy control rule base and fuzzy control system performance analysis have been introduced.(3) 6 fuzzy control systems have been developed, and some difficult problems on craft of manufacture, batch consistency, quality stability, installation and main

本项目以模糊控制技术用于燃气热水器这一较典型的复杂控制系统为应用背景，在模糊信息处理的理论、应用和技术三个层次开展了相关的研究工作：(1)进一步研究了基于格蕴涵代数的格值逻辑系统，建立了两种动态的格值命题逻辑Lvpl和格值一阶逻辑Lvfl，并基于模糊集理论和多值逻辑提出了多种模糊推理的理论与方法；(2)提出了模糊控制系统的多种设计及优化方法与控制算法，建立了模糊控制规则库和模糊控制系统性能分析的一些新理论与新方法；(3)研制完成了6个模糊控制系统，还特别解决了模糊控制燃气热水器和智能控制燃气热水器在产业化过程中的生产工艺、批量一致、质量稳定、安装维修和性能价格等一系列难题，做好了批量生产前的技术准备，现已小批量生产。

Because 3-valued logic has a truth more than 2-valued logic, the quantity of truth of function of 3-valued logic is more than it of 2-valued logic, and 3-valued logic has a more powerful ability to handle problems than 2-valued logic does.

由于三值逻辑比二值逻辑多一个真值，所以三值逻辑的真值函项的数量比二值逻辑的真值函项的数量大得多，所以三值逻辑才会比二值逻辑有更强的处理问题的能力。

In mathematical logic, predicate logic is the formal system of universal symbolic terms, such as first order logic, second order logic, many types of logic or infinitary logic ...

在数理逻辑中，谓词逻辑是符号形式系统的通用术语，比如一阶逻辑，二阶逻辑，多类逻辑或infinitary逻辑。。。。

Extended logic is a logic branch which are made up of by using classical logic to analyze some concepts or categories of some special subjects, particularly, philosophy, including Modal Logic, Deontic Logic, Tense Logic, etc.

逻辑扩展逻辑则是利用经典逻辑的工具，去分析某些具体学科特别是哲学中的概念或范畴而建立的逻辑学分支，如模态逻辑、道义逻辑、时态逻辑等。

The monists maintain that some content of traditional logic, dialectical logic and induction should be excluded from the field of logic, and that traditional logic should be replaced by modern logic in logic teaching.

在传统与现代之争中，不再有人对传统逻辑持诸如&传统逻辑不是逻辑&的观点，对传统逻辑加以批评的学者都是从其不科学、不严密、包含有非逻辑的内容等方面入手。

The different debates about dialectical logic in the 21〓 century reflect the different attitude to dialectical logic. The monist conception of logic takes the so-called dialectical logic as a sub-discipline of philosophy and denies its legitimacy, and the pluralists differentiate dialectical logic from dialectic and regard the former as a kind of logic.

从20世纪30年代到世纪末，中国学者对辩证逻辑的看法走过了这样一个历程：30-40年代，有&辩证法可否成为逻辑&的争论；50-60年代，几乎没有学者公开对辩证逻辑作为逻辑的合法地位提出质疑；80年代之后，又起辩证逻辑是不是逻辑之争，但反对者的观点已变为&辩证逻辑不是逻辑&。80年代以后，中国学者对辩证法与辩证逻辑的区分已非常自觉。

Finally,a simplified case of BOFL,i.e.Boolean Operator Propositional Logicestablished on a Boolean algebra,is further discussed.A complete algorithmfor finding the true level and false level of a formula in BOPL,which subsumes the re-lated work by Wang H.in the propositional logic,is also provided.

对布尔算子模糊逻辑的简化情形一布尔算子命题逻辑作了进一步讨论，放宽了对真值域的要求，将布尔算子命题逻辑建立在布尔代数上，并推广了命题逻辑中的王浩算法，给出了一个完备的求给定公式恒真水平和恒假水平的机械推导算法。

Furthermore, we discuss the truth degree of the propositional formula in two-valued propositional logic system.

并对命题公式的蕴涵问题进行等价描述；对二值命题逻辑系统的程度化研究中命题公式的真度问题进行讨论。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"