对，所以如果论点有效，一个演绎的有效论点中结论是假的，你就知道前提中有一项是假的。
That's right. So if you have a valid argument a deductively valid argument in which the conclusion is false then you know one of the premises must be false.
前提软件安装完成、Tapestry和全部依赖项设置好之后，就可以看看一些TapestryWeb应用程序是什么样了。
With the prerequisites installed and Tapestry and all its dependencies set up, you're ready to see what some Tapestry Web applications look like.
软件工程的一项重要前提就是要有很好的需求说明书。
One of the essential prerequisites of software engineering is to start with a good requirements specification.
根据2003年通过的一项法律，外国大学将被允许在中国建设分校或开办完全的大学，前提是要与当地大学合作。
Under a law passed in 2003, foreign universities were permitted to set up campuses, or whole universities, inside China, if they partnered with a local body.
英国一项研究发现，大多文件共享者在受到一次警告后就停止该行为，但前提是有可能被控的威胁。
British study found that most file-sharers will stop after receiving a warning-but only if it is backed up by the threat of sanctions.
一项新的关于五维黑弦的研究使我们可以看到这些希奇古怪奇怪的对象是怎样引进时间的——当然前提是它们确实存在。
A new study of five-dimensional black strings offers a glimpse into how these strange objects might evolve over time - if indeed they exist at all.
一项联邦法律——《存储信息通讯法案》允许检察官在未得到调查授权或未说明可能原因的前提下可以获取某些电子信息。
A federal law - the Stored Communications Act - allows prosecutors to obtain certain electronic data without a search warrant or a demonstration of probable cause.
取得欧盟候选国资格的进程中有一项前提条件，即友善的邻国关系。
Neighbourly relations are a prerequisite for progress towards the EU.
Requirement项包含三种前提条件。
除了标准的外部收集物，这三项和模式包含了以前提到过的架构构建模块（Architecture Building Block，ABB）的功能性包。
These three in addition to external collections of standards and patterns contain the functional packages known as Architecture Building Blocks (ABBs) mentioned earlier.
重新观察一下RetrieveFromPool代码，如果在队列中找不到项，则会通过AllocateObject方法分配一个新对象，前提是可用对象的数量低于最大数量。
Back in the RetrieveFromPool code, if an entry is not found in the queue, a new object is allocated via the AllocateObject method, as long as fewer than the maximum number of objects is available.
SimpleGEO目前提供了一项供应用程序和网站开发人员使用的信息服务，将经度和纬度转换为地址信息，但这只是一个开始。
SimpleGEO currently offers a service for application and Web developers that turns latitude and longitude information into addresses, but that's only the beginning.
一项调查显示，英国青少年大多喜爱用yeah，no和but这几个单词，在能把自己的意思表达清楚前提下，诸如此类的3个单词占了日常对话的1/3。
One poll revealed that while children had the vocabulary to be articulate, the words "yeah", "no" and "but" accounted for about 1/3 of all the words they used.
放疗和化疗技术挽救了许多患有癌症的年轻女子，但也导致她们无法生育，但一项新奇的医疗手段可以在不拖延癌症治疗的前提下，将患者的生育能力冰冻封存。
Radiation and chemotherapies that save young women from cancer can leave them infertile. But a novel procedure can keep motherhood on ice without delaying treatment
土地征用制度是世界各国普遍建立的一项重要土地管理制度，但在国外，该项制度一般是以土地私人所有这一前提建立起来的。
Requisition of land system is an important land supervising system set up by many countries. But overseas systems are established on the premise of land privatization.
爱尔兰议会以绝对支持投票通过一项将堕胎合法化的法案，前提是遇到医疗紧急事故时。
The Irish parliament has voted by a big majority to back a bill legalizing abortions when the cases are medical emergency.
亚当斯的规则与秩序观中有两项前提：社会和国家先于个人，人与人之间存在天然的不平等。
There are two premises of Adams' approach of doctrine and ruler: society and state prefers to individual and there is natural inequality among people.
注意掌握书写和祭伺只得到1.2的修正，因为你必须掌握书写和至少一项选择性前提才能开始研究律法。
Note that having Writing AND Priesthood only gives you a bonus modifier of 1.2 because you must have at LEAST Writing PLUS one of the optional prerequisites to be able to research Code of Laws.
这一项目的成功是基于三个前提。
对制造企业而言，订单评估是企业需求管理的一项任务，是制定生产计划的前提。
For manufacturing enterprises, order evaluation is a core of demand management and a precondition of production planning.
因此，在确保公路工程内在质量的前提下，提高路面的平整度是一项非常重要的技术性工作。
Therefore it is an important work to improve the smoothness of the pavement in condition that the inside quality of highway engineering is ensured.
根据业务需要确定正确的过程是一项既复杂又耗时的任务，特别是在当前不具备已记录的过程或是缺少整体过程理念的前提下。
Determining the right process for your business needs can be a complex and time-consuming task, particularly if you do not currently have documented processes or an overall process philosophy.
在开始的两项前提下，以目前公布的细节来判断，哈玛斯在麦加的谈判中似乎并没有做出什么让步。
On the first two conditions, to judge by the details published so far, Hamas seems to have given little new ground in Mecca.
如何提高生产连续性和提前提供过程故障警告，是当今工业工程和过程控制领域面临的一项重要挑战。
A major technical challenge facing the manufacturing and process control industries is the need to improve production consistency and provide early warning of process faults and malfunctions.
在专利法中，发明与发现的区分是确定一项智力成果是否具有专利性的基本前提。
Whether it is an invention or a discovery decides whether the intellectual product is qualified as a patent.
尤其是船用柴油机，对可靠性的要求很高，任何一项强化措施都必须以保证可靠性为前提。
In particular, the highly reliability required by Marine diesel engine, any of the measures must be strengthened to ensure the reliability as a precondition.
用人单元侵权招致工伤时应肯定周全救援、实时救援、工伤义务无前提实用、休息者自立选择侵权义务四项准绳。
The use of human element tort should be affirmed in the comprehensive rescue, real-time rescue, industrial injury obligations without preconditions, the rest of the four principles.
用人单元侵权招致工伤时应肯定周全救援、实时救援、工伤义务无前提实用、休息者自立选择侵权义务四项准绳。
The use of human element tort should be affirmed in the comprehensive rescue, real-time rescue, industrial injury obligations without preconditions, the rest of the four principles.
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