This article offers the first critical edition of and philological commentary on a previously unpublished prefatory text (Ἕτερον προοίμιον) transmitted under the name of Theophilos Korydalleus and found in over forty-five manuscripts of his Aristotelian Logic. It examines the status, content, and manuscript transmission of this brief philosophical treatise, which has hitherto been neglected in favour of the more extensive prologue printed in the 1729 edition. Drawing on new manuscript evidence, particularly a marginal scholion by Iakovos Argeios (Add MS 7143, British Library), the study argues that the Ἕτερον προοίμιον constitutes the authentic preface by Korydalleus himself, whereas the longer prologue should be attributed to his disciple and successor Ioannes Karyophylles. This attribution, if accepted, sheds light on the process of textual interpolation and ideological appropriation within the Patriarchal Academy of Constantinople during the late seventeenth century. The study situates the controversy over the two prologues within the broader intellectual and political conflict between the Korydallean tradition, represented by Karyophylles, and the faction aligned with Alexander Mavrokordatos. By highlighting the interplay between manuscript transmission, authorship, and institutional power, the article contributes to ongoing efforts to reassess the contours of post-Byzantine philosophical education and the editorial challenges posed by early modern Greek Aristotelianism.