valid formula造句

例句与造句

1. We can construct me by using the technical methods in modal logics to define general valid formulae
   我们可仿造真性模态逻辑的技术方法定义普遍有效式，构造极小正规认知系统me 。
2. It's difficult to find valid formula in a sentence. 用valid formula造句挺难的