"Chèng-bêng" pán-pún chi-kan bô-kāng--ê tē-hng

刪去的內容 新增的內容
~ robot Adding: el, nn, simple, sv
~ robot Adding: zh-yue:數學證明
Tē 43 chōa:
[[zh:證明]]
[[zh-classical:證明]]
[[zh-yue:數學證明]]