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.
On today’s pod: the Italian job. After fears Serie A could be shut out of the Champions League last 16, Atalanta produced a stirring comeback in Bergamo to knock out Dortmund 4-3 on aggregate. The panel debate the decisive moment: was it a high foot or a low head? Laws Lars introduces us to a new referee rhyme, and the panel salutes Samardzic’s top-corner penalty with the last kick of the game.，详情可参考safew官方版本下载
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Nvidia has been scrutinised by investors who worry about its ever-expanding web of deals with other companies.
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Not sure about the type of research you need to be doing? Don’t worry. Other Side of the Story has its own guide on thinking like a journalist. It includes a few useful steps: