The first part is the two aspects of the validity of law.

第一部分，法律有效性的两个向度。

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Validity of law is a very important legal issue, but also a controversial issue.

法的效力是一个十分重要的法学问题，同时也是一个争议颇多的问题。

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Yale President Richard Levin may have recognized the validity of some of these objections when he mentioned the 'limitations that Yale has to accept given Singaporean tradition and law.

耶鲁大学校长理查德·莱文，当他提及‘耶鲁在接受新加坡传统和法律的限制’时也意识到某些异议的合法性。

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Wouldn't that be sure and swift justice since the plea of guilty is the strongest form of proof known to the law?" Some legal experts continue to raise questions about the validity of the military commissions, even though the Obama administration and Congress have taken steps to give defendants more rights in that process.

VOA: standard.2009.11.25

Later this month or early next the Constitutional Court will rule on the validity of a law that would clear Mr Uribe's path.

ECONOMIST: Colombia's presidential non-campaign

In the next few months, it is due to rule on the validity of a law pushed through by Mr Uribe which changes the constitution to allow a president to seek a second term.

ECONOMIST: Colombia

It seems to me the public policy behind effective enforcement of the open meeting law is so strong that it does outweigh the interest, at least at this time, which may exist in favor of sustaining the validity of the law.

FORBES: Wisconsin Judge Blocks Anti-Union Law