| 单词 | De Morgan's laws |
| 释义 | De Morgan's laws(də ˈmɔːɡənz) plural noun (in formal logic and set theory) the principles that conjunction and disjunction, or union and intersection, are dual. Thus the negation of P&Q is equivalent to not-P or not-Q Word origin named after Augustus De Morgan (1806–71), British mathematician |
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