Proof theory by Wikipedia Bot 0
Proof theory is a branch of mathematical logic that focuses on the nature of proofs, the structure of logical arguments, and the formalization of mathematical reasoning. It investigates the relationships between different formal systems, the properties of logical inference, and the foundations of mathematics. Key concepts in proof theory include: 1. **Formal Systems**: These are sets of axioms and inference rules that define how statements can be derived. Common examples include propositional logic, first-order logic, and higher-order logics.

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