The Existential Graphs of Charles Sanders Peirce

Charles Sanders Peirce's Existential Graphs are a visual logic system that uses diagrams to represent logical relationships and reasoning. Imagine them as written sketches, where lines and shapes symbolize concepts like statements, conditions, or quantifiers. These graphs aim to make complex logical ideas clearer and more intuitive by transforming abstract formulas into visual forms, helping users see how ideas connect and interact. They serve as a tool for analyzing and understanding logical truth and inference, emphasizing a clear, visual approach to formal logic that complements traditional symbolic notation.