add header

2025-04-26 15:13:56 +00:00 · 2021-06-18 23:09:36 +08:00 · 2021-06-18 23:09:36 +08:00 · a838d22da8
commit a838d22da8
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--- a/zh-cn/set-theory-cn.html.markdown
+++ b/zh-cn/set-theory-cn.html.markdown
@ -2,6 +2,9 @@
 category: Algorithms & Data Structures
 name: Set theory
 contributors:
+translators:
+    - ["Tianchen Xu", "https://github.com/lo0b0o"]
+lang: zh-cn
 ---
 集合论是数学的一个分支，研究集合、它们的运算和它们的性质。