On the Transformation Rules of Erasure and Insertion in the Beta Part of Peirce's Existential Graphs

摘要

The aim of this paper is to show the symmetric organization of the transformation rules for erasing or inserting graphs in Existential Graphs, which Peirce constructed as the diagrammatical system of logic that uses graphical apparatus instead of formulae of standard formal logic. Many researchers have overlooked the symmetry of Peirce's initial layout of the transformation rules of erasure and insertion. In this essay, I will symmetrically rearrange the rules of erasure and insertion on the basis of the accurate understandings of Peirce's statements.