Frege system

The Frege system refers to a formal system of logic introduced by the German mathematician and philosopher Gottlob Frege in the late 19th century. It is significant for its contributions to the foundations of mathematics and logic, particularly with regard to propositional and predicate logic. Here are some key aspects of the Frege system: 1. **Propositional Logic**: Frege's early work focused on propositional logic, where statements are treated as propositions that can be either true or false.