This formula is satisfiable because if we set to b to true and a to false, then the whole formula is true. All other assignments make the formula false, but it doesn't change that the formula is satisfiable as long as there is at least one assignment makes the formula true.
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Дания захотела отказать в убежище украинцам призывного возраста09:44
Медведев вышел в финал турнира в Дубае17:59。关于这个话题，51吃瓜提供了深入分析
Анастасия Дубова (редактор отдела БСССР)