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:
When she received a phone call saying a womb had been donated and a transplant was possible, Bell remembers being "in complete shock" and "really excited".
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The trust had known grandparents were unable to help as they had told staff during assessments, Dan said.
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«Нет, это явно кампания, во главе которой стоят Соединенные Штаты и Израиль», — ответил он на соответствующий вопрос.