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.
「像鬼一樣工作」：台灣外籍移工為何陷入「強迫勞動」處境
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For almost 16 years, Pippa Begg ran Board Intelligence as co-chief executive with Jennifer Sundberg.
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