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:
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He suggests that the smoke alarm industry has a responsibility to reduce nuisance alarms, which sometimes cause people to deactivate or uninstall the devices – a huge safety risk.
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It was only during the pandemic he opted to join his siblings by returning to the Scottish Borders, with him eventually settling in Selkirk.
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