这个论点是有效的，前提为假？
如果前提为真，这个结论可能为真。
If this premise is true then this conclusion is probably true.
如果论点前提为假，论点可能有效吗？
If the premises of an argument are false could the argument be valid?
前提为假，论点可能有效吗？
这是另一个例子，前提为真。
前提为真吗？相关性有多强？
第一个还是第二个前提为假？
两个前提为真，结论为真。
前提为假,论点可能为真。
You could have a valid argument in which the premises are false.
因为我们知道如果前提为真，结论肯定为真。
Because we know that if the premises are true the conclusion must be true.
因为有可能，前提为真结论为假。
Because there is a possibility in which the premises are true and the conclusion false.
我们问前提为真吗？
这个世界上前提为真真假，结论为假，这对吗？
So this world the premises are true true and false and the conclusion is true. Is that alright?
,论点前提为真，结论为假。
What about the last one, the premises of the argument is true and the conclusion false.
好，前提为真吗？
有没有可能的情境，前提为真结论为假？
Is there any possible situation where that premise is true and that conclusion false?
如果前提为真结论也为真。
If the premises were true would the conclusion be true also.
前提为真结论为假可能吗？
当你们评价归纳推广时，你们寻找的是前提为真吗？
When you are evaluating any inductive generalization you're looking for is the premise true?
与现实相关，是的，今天不是星期五所以前提为假;
Relating to the real world, yes that's right, it's not Friday so that premise is false.
所有这些情境，两个前提为真，结论的否定也为真。
So there are all sort of situation where these two premises are true and so is the negation of the conclusion.
如果一个前提为假那就不能保证，结论的真理，对吗？
If one premise if false that doesn't guarantee the truth of the conclusion does it?
因为没有可能情境，其中前提为真结论为假。
Because there is no possible situation in which the premises are true and the conclusion false.
前提为真，结论为真。
如果一个论点有效，如果前提为真，那么结论肯定为真。
If an argument is valid and if the premises are true then the conclusion must be true.
不，对不起，如果这些前提为真,那结论必定为真，对吗？
No I am sorry, if those premises are true that the conclusion has to be true doesn't it?
你们认为一个论点，如果前提为假，可能有效吗？
Do you think an argument could be valid if all its premises of the argument is false?
举手，好，前提为假，结论为真，这仍然有效吗？，很好。
Hand up. Alright the premises are false the conclusion is true could it still be valid? Yep good well done.
但是我再问问，有没有可能，前提为真结论为假。
But let me ask again, is there any possible situation where that premise is true and that conclusion is false.
不是，没有可能情境，前提为真结论为假，不是吗？
No sorry there are no possible situation where the premises are true and the conclusion false. Is there?
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