The study begins with the development of the nature and character of fifteenth century Italian humanism. It then proceeds to delineate the humanist methodological approach to three key areas; rhetoric, grammar, and historical criticism. Having thus laid this necessary foundation, the work examines selected portions of the debates of the council with regard to each of the three key areas, in order to ascertain whether or not a humanistic approach was utilized by the Latin participants in their argumentations. This investigation concludes that the Latin advocates of the council did indeed employ humanist methodology in both the preparation and presentation of their arguments in the debates. Therefore, such evidence strongly suggests that an appreciation and acceptance of the humanist approach to rhetoric, grammar, and textual criticism existed in the church in the early decades of the fifteenth century.

Abailard expanded Anselm's sola ratione methodology, and in so doing he anticipated Renaissance humanism. His theory of abstraction justified the use of dialectic in theology, and was the basis for his entire theological system. He distinguished faith from mere belief by the application of dialectic, and created a theology which focused on the individual. The Renaissance humanists emphasized individual moral edification, which was evident in their interest in rhetoric. Abailard anticipated these rhetorical concerns, focusing on the individual's moral life rather than on metaphysical arguments. His logical treatises developed a theory of language as a mediator between reality and the conceptual order, and this argument was further developed in Sic et non. Sic et non was more than a collection of contradictions; it was a comprehensive theory of language as an inexact picture of reality, which forced the individual to reach his own understanding of scripture. Abailard's development of the power of reason anticipated developments in the Renaissance.