An existential graph is a type of diagrammatic or visual notation for logical expressions, invented by Charles Sanders Peirce, who wrote his first paper on graphical logic in 1882 and continued to develop the method until his death in 1914.
An existential graph is a type of diagrammatic or visual notation for logical expressions. A type of diagrammatic or visual notation is invented by Charles Sanders Peirce. Charles Sanders Peirce wrote his first paper on graphical logic in 1882. Charles Sanders Peirce continued to develop the method until his death in 1914.