English to Logic
www.cs.miami.edu › Content › EnglishToLogic1st Order Logic: Singly General Monadic. Play. More than in propositional logic, in predicate logic the best tip for translating from English into notation is to play with the English sentence, and then to play with your notation proposals. Paraphrase. Play with different paraphrases of the English until you have one that is (1) equivalent to ...
Compilers - First-order logic
crypto.stanford.edu › ~blynn › compilerThis important result suggests a strategy to prove any first-order formula f . As a preprocessing step, we prepend explicit universal quantifiers for each free variable: generalize fo = foldr (Qua Forall) fo $ fv fo. Then: Negate f because validity and satisfiability are dual: the formula f is valid if and only if ¬ f is unsatisfiable ...