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.
"Together, these improvements mean higher-quality answers that arrive faster and stay relevant to the task at hand," the company states. Separately, OpenAI claims GPT-5.4 is its most factual model yet, noting, relative to GPT-5.2, it's 18 percent less likely to generate a response with any errors. Here's hoping it knows not to turn to Grokipedia for information, something its predecessor was known to do.
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