1. Prof: Well, that would be a falseargument, hold that one.
教授:这会是一个伪论点,先放放。
youdao
2. I call that belief market fundamentalism and I contend that it is based on a falseargument.
我把这种说法称作“市场原教旨主义”,并且我认为这种论断是建立在错误的论据基础上的。
youdao
3. Because you are deploying the SWF file to an application server, and because your application is using network data rather than local data, you do not use the -use-network=falseargument.
13. So if we see the conclusion of a valid argument is false what do you know? A little bit longer.
如果我们看到有效论点的结论为假,你们知道什么?有一点长。
youdao
14. If we can show the conclusion of a valid argument - put your hand up-if we can show the conclusion of a valid argument is false what do we know?
如果我们可以展示有效论点的结论-,举手,如果我们可以展示,有效论点的结论为假,我们知道什么?
youdao
15. Do you think an argument could be valid if all its premises of the argument is false?
你们认为一个论点,如果前提为假,可能有效吗?
youdao
16. 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.
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。
youdao
17. Could the argument be valid if the premises are false?
前提为假,论点可能有效吗?
youdao
18. If the premises of an argument are false could the argument be valid?
如果论点前提为假,论点可能有效吗?
youdao
19. And I am saying actually the discovery that the valid argument is that the conclusion in which is false can be hugely important.
我说实际上发现那是有效论点,结论为假,可能很重要。
youdao
20. So it's a valid argument but has false premises. Okay what about if it is an invalid argument with false premises.
这是个有效的论点但是有假前提,如果是无效论点有假前提呢?
youdao
21. So you could have a valid argument in which the premises are all false.
一个有效论点可能,前提都为假。
youdao
22. You could have a valid argument in which the premises are false.
前提为假,论点可能为真。
youdao
23. What about the last one, the premises of the argument is true and the conclusion false.
,论点前提为真,结论为假。
youdao
24. there's no possible situation where that's true and that's false therefore, that argument is valid.
没有可能这为真所以那为假,所以,论点有效。
youdao
25. An argument can be either valid or invalid but not true or false.
论点可能有效或者无效,但是不能或真或假。
youdao
26. And the reason for that because an argument is valid if and only if there are no possible situation in which all its premises are true and its conclusion false.
原因是因为论点有效,如果且仅如果没有可能情况,所有的前提都为真结论为假。
youdao
27. If the premises could be true together with the conclusion being false then the argument is invalid.
如果前提可能为真,同时结论为假,论点有效。
youdao
28. Isn't that an argument that has two false premises but is valid.Okay right what about the following?
这个论点有两个错误前提,但仍然有效好,接下来的呢?
youdao
29. To understand what an argument is, it can't be true or false.
理解什么是论点,他不能或对或错。
youdao
30. So it's a sufficient condition for an argument being valid that there is no possible situation where the premises are true and the conclusion false. And that's a necessary condition too.