Law science is not only a science which researches a nation and law, but also an applied logic subject.

法学是研究国家和法的科学，同时又是一门应用逻辑学。

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Logic is taught here as a separate subject.

逻辑学在这里是作为单独一门课来讲授的。

《新英汉大辞典》

We had to duplicate that logic in ButtonObserverAnonSpec when we declared observableButton as a Button instance that mixed in the Subject trait directly.

而我们在声明observablebutton为一个按钮实例的时候，我们直接混合了Subject trait，它重复了ButtonObserverAnonSpec的逻辑。

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Willard Quine's early work was in the field of mathematical logic and set theory, the subject of half a dozen of his 23 books.

ECONOMIST: Willard Quine

While I do not agree, I can at least see some element of logic in their position just as I understand that well meaning and reasonable scientists disagree on the subject.

FORBES: GOP Hands Polluters and Oil Companies A Major Victory

If you accept the logic of the optimal currency area approach, the world requires a proliferation of currencies, so that every area subject to shocks has its own.

ECONOMIST: Man of the hour | The