“De Morgan’s laws(set theoretic version)”的概念、定义、翻译、参考文献-科学参考

单词	De Morgan’s laws(set theoretic version)
释义	De Morgan’s laws(set theoretic version) Mathematics For sets A and B, (A ∪ B)′ = A′∩B′ and (A ∩ B)′ = A′∪B′, where′denotes complement. These are De Morgan’s laws. These laws extend naturally to more than two sets: $(\cup_{i \in I}^{} A_{i})' = \cap_{i \in I}^{} A_{i}', (\cap_{i \in I}^{} A_{i})' = \cup_{i \in I}^{} A_{i}' .$
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