白马非马，所以黄马非马，黑马非马..., 一切有颜色的马都非马；而马是一切颜色马的集合，所以马非马 - 就这么简单

来源: 老键于 2023-12-28 16:35:51 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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