 To Comte, the law of three stages made development of sociology inevitable and necessary.Comte saw the formation of his law as an active use of sociology, but this formation was dependent on other sciences reaching the positive stage; Comte’s three-stage law would not have evidence for a positive stage without the observed progression of other sciences through these three stages.Thus, sociology and its first law of three stages would be developed after other sciences were developed out of the metaphysical stage, with the observation of these developed sciences becoming the scientific evidence used in a positive stage of sociology.