Abstract

The System of Existential Graphs may be characterized with great truth as presenting before our eyes a moving picture of thought. Provided this characterization be taken not as a flatly literal statement, but as a simile, it will, I venture to predict, surprise you to find what a strain of detailed comparison it will bear without snapping.Peirce once called his graphical system of logic—the Existential Graphs or EGs—the moving pictures of thought. In this essay, I argue that Peirce meant that using his graphs to study the movement of thought is akin to Eadweard Muybridge’s use of moving pictures to study animal motion, and I show that this analogy is highly apt for several reasons. The analogy is apt because:...