While textbooks and other writings on logic (e.g., disputations, sections within encyclopaedias) were utilized in large quantities during the early modern period, the relation between logic and philosophy was not always clear and is still sometimes a matter for debate to this day. For much of the 16th and well into the 17th century, whether logic was a part of philosophy or was preparation for the same was an issue of contention for many authors. In much of the European Continent, logic was taught in schools and then again at the university level, and sometimes with the use of highly diverse authors (e.g., Petrus Ramus at the secondary school level and Aristotle at the university level).
Reasoning process The central focus of virtually all logic textbooks is the reasoning process, i.e., the process by means of which humans acquire knowledge. In logic one begins with themes (also referred to, for example, as categories, predicaments, or universals). With the use of arguments – which also can be referred to as predicates, places, or topics – one forms enunciations (i.e., propositions), which in turn are used to form syllogisms. The following arguments were generally among those discussed: antecedent and consequent, cause and effect, classification, comparison, definition, part and whole, relation, signs, and testimony. Among the sub-categories of enunciations commonly examined were affirmative, negative, true, false, necessary, contingent, simple, composite, non-modal, and modal enunciations. Syllogisms were usually discussed by diagramming common modes – i.e., kinds – of syllogisms (normally 48 in number) of which only 14 can result in valid syllogisms; various kinds of syllogisms – e.g., demonstrative or necessary syllogisms – were usually included.
Knowledge process Discussion of syllogisms was normally accompanied by discussion of fallacies, induction, and demonstration / proof. Terms were discussed in one or more contexts; ideas and/or concepts were sometimes included. Scientia (which could be understood to mean knowledge and/or science), opinion, and other general topics pertaining to the knowledge process – including impediments to knowledge (e.g., error, prejudice) – were sometimes given attention. From the late 17th century onwards, logical interpretation (i.e., hermeneutics), and criticism (normally comprising or including literacy criticism) were included within the realm of logic.
Pedagogy From the year 1550 onwards – especially within logic texts authored by Protestants – pedagogical subject-matter was also included. The concept of method and disputation theory were normally examined; sometimes discussion of the how logic should be practiced and/or logical exercises were added. Method evolved into the modern concept of teaching methods; disputations serve as the precursors of the master's thesis, the doctoral dissertation, and academic debating. The pedagogical component of early modern treatises on logic served as the basis for the academic and professional subject-matters which today comprise the general field of pedagogy.
Prof. Joseph S. Freedman, Alabama State University in Montgomery, Alabama