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Questionnaire-2024/propositional_logic/theory_questions/4_2_notions_self.tex

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  1. \item \self Consider a formula $\varphi$ in propositional logic. You want
  2. to test whether $\varphi$ is \emph{valid}. However, you only have
  3. a procedure for checking satisfiability. Describe how to use this
  4. procedure to determine whether $\varphi$ is valid. \\