Authors/Duns Scotus/Quaestiones in Librum Porphyrii Isagoge

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The Franciscan Institute

  • B. Ioannis Duns Scoti. Quaestiones in Librum Porphyrii Isagoge; Quaestiones super Praedicamenta Aristotelis, edited by R. Andrews, G. Etzkorn, G. Gál, R. Green, T. Noone, and R. Wood, Opera Philosophica 1 (St. Bonaventure, N.Y.: The Franciscan Institute Press, 1999).


The twelve MSS collated for the Isagoge text were:

A, B, D, E, G, K, L, N, Q, R were collated for the Categories text.

The MSS not collated for the Isagoge text were:

P, S, T, U were also rejected for the Categories text.



  1. According to Andrews, this manuscript is tentatively dated to around 1325, nearly twenty years after Scotus's death, making it the earliest manuscript of any of Scotus's logical works.
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