Before explaining the title, here’s a little background:
Let be the vector space over with basis
Using this notation, the collection of differential forms on are elements
where consists of -forms on . There also exists a differential operator which satisfies the expected properties for exterior differentation. Under this construction, the pair is called the de Rahm complex on . Moreover, the kernel and image of are known as the closed and exact forms, respectively.
When this material was presented in Bott & Tu’s Differential Forms in Algebraic Topology, the following quote was included:
The de Rahm complex may be viewed as a God-given set of differential equations, whose solutions are the closed forms. For instance, finding a closed 1-form on is tantamount to solving the differential equation ….
So maybe there is a God, and maybe God is a mathematician? *ponders*