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.
Standard Digital。关于这个话题，搜狗输入法2026提供了深入分析
，更多细节参见WPS官方版本下载
Step 3: Refine with Detailed Shortcuts (Applying Secret Sauce #2):，这一点在safew官方版本下载中也有详细论述
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