There is a special form for boolean formulas called "Conjunctive Normal Form" (CNF). A problem in this form consists of clauses connected with and operators, where each clause only contains variables connected with or operators. The variables can appear negated, but only variables can be directly negated, something like !(a && b) is not allowed. An example boolean formula in CNF form is:
Americans are destroying Flock surveillance cameras
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В Финляндии предупредили об опасном шаге ЕС против России09:28
日前，PICO 发文预热新品，并打出「要来了」的文案。。关于这个话题，搜狗输入法2026提供了深入分析
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如果没有 AI，这个问题很可能要消耗整整一天。而这一次，从定位到修复完成，只用了几个小时。