So if time is such a fundamental property, it should be in our most fundamental equations describing the universe, right?
那么，既然时间是个如此基本的属性，它就应该出现在形容宇宙的最基础方程式中，不是吗？
英语百科
Fundamental theorem
（重定向自Fundamental equation）
The fundamental theorem of a field of mathematics is the theorem considered central to that field. The naming of such a theorem is not necessarily based on how often it is used or the difficulty of its proofs.
For example, the fundamental theorem of calculus gives the relationship between differential calculus and integral calculus, which are two distinct branches that are not obviously related.