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# 形式系统 (Formal System)
- **领域**: 数理逻辑
- **来源**: [[godel-incompleteness-tutorial|哥德尔不完备定理教程]]
## 概述
形式系统由四要素组成:字母表(有限符号集合)、语法规则(合法公式)、公理(推理起点)和推理规则(如 Modus Ponens。[[godel-incompleteness-theorems|哥德尔不完备定理]]揭示了任何「足够强」的一致形式系统的内在限制。
> 📌 *占位符页面 — 待补充完整内容。*
## 相关概念
[[peano-arithmetic]] · [[godel-incompleteness-theorems]] · [[consistency-logic]] · [[completeness-logic]]