Fixing Shin's Reading Algorithm for Peirce's Existential Graphs

摘要

In her book "The Iconic Logic of Peirce's Graphs", S. J. Shin elaborates the diagrammatic logic of Peirce's Existential Graphs. Particularly, she provides translations from Existential Graphs to first order logic. Unfortunately, her translation is not in all cases correct. In this paper, the translation is fixed by means of so-called single object ligatures.