Translating English Sentences System Specifications Boolean Searches Logic Puzzles Logic Circuits…

The statements that describe valid input are known as preconditions and the conditions that the output should satisfy when the program has run are known as postconditions. Universal quantification, which tells us that a predicate is true for every el…

DEFINITION 1 A compound proposition that is always true,no matter what the truth values of the proposi-tional variables that occur in it, is called atautology. A compound proposition that is always false iscalled a contradiction. A compound propositi…

propositional variables (or statement variables), letters used for propositional variables are p, q, r, s, . . . . The truth value of a proposition is true, denoted by T, if it is a true proposition, and the truth value of a proposition is false, den…

John M. Lee is a famous mathematician, who bears the reputation of writing the classical book "Introduction to Smooth Manifolds". In his article, "Some Remarks on Writing Mathematical Proofs", he gives us concrete and complete suggesti…

目前本人只进行到了第五章的章末补充练习,应该是从4月6号开始学习的,又是英文版,而且基本就下班回家抽2个小时左右去学,所以进度较慢. 由于本质是数学,除了一些程序处理和大计算量的问题,基本上一本草稿本和一支笔即可.其实这次已经是三周目了, 第一次是大二,只是粗略目扫一遍,很多都是不理解就跳过,假装自己已经懂了:第二遍是毕业之后第一年,大概稍比第一次多懂了一些之前遗留跳过的概念,推论,和问题,但也只能说是基本上只吃透了差不多60%而已.时隔两年,又重拾基本核心,希望可以再次温故知新吧. 先说下全书…

Tautology Description WFF 'N PROOF is a logic game played with dice. Each die has six faces representing some subset of the possible symbols K, A, N, C, E, p, q, r, s, t. A Well-formed formula (WFF) is any string of these symbols obeying the followin…

Design partion Design partion常用于“增益变量(QIC)”,通过Design Partition对子模块进行“逻辑分区”,在Design Partition Window中最关键的一个设定是Netlist Type,它有四个可选值——Source File,Post-Synthesis,Post-fit,Empty(如上图中所标1,2,3,4,上图是为了将各Type全面的显现出来,而不是最终设定).它们各自的含义是: Source File:如果源代码未修改,则仅不重…

<logic:notEmpty name="sList" scope="request"> <logic:iterate id="element" indexId="index" name="sList"> <tr> %>.</td> <td><bean:write name="element"/></t…

绘制Logic Decal图形: 1.Gate Decal与Part Type的区别: Gate Decal:即元器件在原理图中所展现出来的形状 Part Type:将元件图形.电气特性都进行定义后所形成的可供调用的元件 注:单纯的Gate Decal是无法调用的,必须经过Part Type定义 使用Tool——Part Edit——Edit Graphic建立图形 使用Edit Electrical定义电气特性 元件建立技巧: 1.为避免元件建立过多太繁杂,使用Edit Electrical时…