Two dominant ideas have prevailed in the recent research on diagrammatic reasoning and representation. That diagrams, especially logical diagrams, are visual in senses in which symbolic notations are not, and that logical diagrams are iconic in senses in which symbolic notations are not. We submit both of these claims under critical scrutiny. We use Peirce's theory of Existential Graphs, the mainstay of diagrammatic reasoning in both its historical and systematical senses, as the testing ground. We show that neither of these claims is well founded.
|Title of host publication||Peirce on Perception and Reasoning: From Icons to Logic|
|Publication status||Published - 2017|