package std:web;
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:。业内人士推荐Line官方版本下载作为进阶阅读
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第六条 治安管理处罚必须以事实为依据，与违反治安管理的事实、性质、情节以及社会危害程度相当。