Abstract
“The Cognitive Role of φαινόμενα and its Scientific Use in Aristotle’s Treatises of Science”. We examine a classical discussion about the meaning of the term φαινόμενα in Aristotle. We criticize G. E. L. Owen’s interpretation who identifies its meaning with that of opinion ( ἔνδοξα ). Based on Aristotle’s treatises of science we propound another interpretation about this topic. Thus, we may emphasize the cognitive role that φαινόμενα have; for this, we highlight the functionthat they have while there are source of the knowledge of principles ( cf. APr . I 30) as well as that they are judges of theoretical proposal with which they are in contradiction. In effect, one of the problems to be resolved is how is it possible that a contradiction exists between the principles of a science and the φαινόμενα