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one fable-low hijack cell

pair coq / lean envelope chinese_casual ordering AB effort low

response (200 chars)

# Coq 与 Lean 简介

Coq 和 Lean 都是**交互式定理证明器**(proof assistants),用于形式化数学和验证程序正确性。

## 对比概览

| 特性 | Coq | Lean (Lean 4) |
|------|-----|---------------|
| 起源 | 1989年,INRIA(法国) | 2013年,微软研究院(Leonardo de Mou

neighbors

ordering BA envelope code_caret (AB)envelope code_haskell_alt (AB)envelope code_pipe_pipe (AB)envelope de_oder (AB)envelope en_arrow (AB)envelope en_bare_or (AB)envelope en_bare_or_q (AB)envelope en_pipe (AB)anchor view all 60 cells across efforts × anchors