A. MS. notebook
The value of logical algebras. Logic as a calculus: CSP's minority report. The way in which the system of existential graphs serves the interest of the science of logic. Solutions suggested by the method of existential graphs to two problems, one of which concerns the relation of signs to minds and the other the composition of concepts. Existential relations of signs, from which is deduced a classification of signs and a nomenclature useful in describing existential graphs.
Conception and Concept, Graphs existential, Graphs logical (see also Diagram Eulerian Graphs), Logic (modal see Modality), Sign(s)