+A formal system is an abstract framework for rigorously manipulating symbols according to defined rules. It includes a [Formal Language](/wiki/formal_language), a set of [Axioms](/wiki/axiom), and inference rules for deriving theorems. These systems are foundational to mathematics, logic, and computer science.
+## See also
+- [Logic](/wiki/logic)
+- [Mathematics](/wiki/mathematics)
+- [Proof](/wiki/proof)
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