A reduction may prove that something-is-the-case.Logical formLearned from7 sentences. An exhibit may prove that something-is-the-case.Logical formLearned from7 sentences. Training may prove impossible.Logical formLearned from7 sentences. A male may prove a foil.Logical formLearned from7 sentences. A search of a mall may prove fruitless.Logical formLearned from7 sentences. Some (knife wounds) may prove fatal.Logical formLearned from7 sentences. Discussions may prove satisfactory.Logical formLearned from7 sentences. A country may prove good.Logical formLearned from7 sentences. Consensus may prove difficult.Logical formLearned from7 sentences. A blast may prove presence of weapons.Logical formLearned from7 sentences. History may prove a person.Logical formLearned from7 sentences. A move may prove effective.Logical formLearned from7 sentences. A program may prove disastrous.Logical formLearned from7 sentences. A mix of (infrastructure spending) may prove a waste of money.Logical formLearned from7 sentences. (Fraud allegations) may prove true.Logical formLearned from7 sentences.