Ueberweg, System of Logic
Branches of Philosophy Lecture 2 RPC 2014©
Cassirer Ernst - The Influence of Language Upon the Development of Scientific Thought en the Journal of Philosophy, Vol. 39, No. 12 (Jun. 4, 1942), Pp. 309-327
A parsimonious Begriffsschrift [concept notation] for animals James R Hurford.
Aristotle
Philotheus Boehner - Medieval Logic