A proof can be undisputed.Logical formLearned from19 sentences. Proof may pertain-to a friendship.Logical formLearned from19 sentences. A proof may be presented.Logical formLearned from19 sentences. Proofs may be given.Logical formLearned from19 sentences. A person may submit proof.Logical formLearned from19 sentences. Proofs can be positive.Logical formLearned from19 sentences. Proof may pertain-to immunizations.Logical formLearned from19 sentences. An event can be a proof.Logical formLearned from19 sentences. Proof may pertain-to a degree.Logical formLearned from19 sentences. A proof can be competent.Logical formLearned from19 sentences. A burden of proof can be on a state.Logical formLearned from19 sentences. Proof may pertain-to a case.Logical formLearned from19 sentences. A proof can be curious.Logical formLearned from19 sentences. A proof can be constituted-of-or-filled-with global warming.Logical formLearned from19 sentences. A proof can be infallible.Logical formLearned from19 sentences.