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.
Силовые структуры
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Мир Российская Премьер-лига|19-й тур
depending on the task description and it is important to review and test the