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

The real alternate source may provide valid IDs, invalid IDs, or no IDs.

实际的备用源可能提供有效的ID、无效的ID、或者不提供ID。

youdao

You're absolutely right statements, and propositions can be true or false but arguments can't be true or false, arguments can only be valid or invalid.

你们的论点完全正确，命题有真假，但是论点不能或真或假，论点只能有效或无效。

youdao

But if deterrence theory is valid, then this double standard is invalid.

CNN: Nuclear deterrence could restrain N. Korea, Iran

Whenever possible, each provision of these terms shall be interpreted in such manner as to be effective and valid under applicable law, but if any provision is deemed prohibited or invalid under applicable law, such provision shall be ineffective to the extent of such prohibition or invalidity without invalidating the remainder of such provision or the remaining provisions of these terms.

CENTERFORSECURITYPOLICY: Terms of Use

"The fact that a foreign national was able to re-enter the U.S. with what appeared to be a valid student visa, while Customs and Border Protection officers were unaware that his visa status had become invalid, represents a serious hole in our national security, " McCaul told CNN.

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