Fermentation
发表于 2025-3-28 15:15:08
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出没
发表于 2025-3-28 22:11:15
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Minuet
发表于 2025-3-29 01:50:24
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沙发
发表于 2025-3-29 06:04:49
time. In the intervening three decades, a lot of interesting things have happened to mathematical logic: (i) Model theory has shown that insights acquired in the study of formal languages could be used fruitfully in solving old problems of conventional mathematics. (ii) Mathematics has been and is m