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.
Мощный удар Израиля по Ирану попал на видео09:41
，更多细节参见同城约会
Раскрыты подробности о договорных матчах в российском футболе18:01。关于这个话题，同城约会提供了深入分析
Brennan, from Darlington, is the first Briton to win the race since Mark Cavendish in 2012 and 2015, whose finishing sprint was similar to the burgeoning star. Brennan avoided the Cavendish comparison after the race.