I rate this idea a creation score of 3/10; a mathematical proof reveals an existing relation, it does not create it. The equivalence of sensitivities is not 'created' by the proof, but rather formalized, thus making it measurable and usable. Imagine validating an investment strategy; tests reveal its robustness under certain conditions, but they do not create it. This proof is a discovery, not an invention, demonstrating an intrinsic property.