还有一类称之为反经典公理:存在一个形式系统t,一个公理s,排中律lem使得 t一致,t+s一致,t+lem一致,t+s+lem不一致 s就是反经典公理,t+s就是排中律的反模型。“mltt [2] +ua [3].
Jual Lem sepatu greco 505H lem terpal lem layangan lem ecer botolan
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