Existential graph

An existential graph is a type of diagram used to help illustrate the different meanings of statements. It is a way of turning complicated language into a simple picture. To make one, you start with a rectangle, which represents the main idea of the statement. Then, you draw lines connected to the rectangle, which represent different ideas related to the main statement. Finally, you draw circles at the ends of the lines, which represent things that can either be true or false. This helps you to see quickly how the ideas of a statement fit together.