Is there a "First Principles" for integration? More specifically, For indefinite integrals. Ive looked online and cant find anything. Is there a method of finding indefinite integral analogous to finding the derivitive by: Lim (f(c+h)-f(c))/h h->0 So final question: Besides the 'inverse power rule', integration by parts or substitution, Is there a way to find the indefinite integral of a function? Thank you!