好，我们看着一些论点，通过它们的形式演绎有效。

Good, we then looked at some examples of arguments that are deductively valid in virtue of their form.

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本文讨论了编译软件的组合理论，并提出了一个形式演绎系统。

In this paper a combinational theory of compilers is described and a formal deductive system is given.

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不得以任何形式演绎复制相关艺术品进行商业行为，违者将追究其法律责任。

Cannot any form deduction duplication related artware carry on the business dealing, the offender will investigate its legal liability.

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