Proof may be established.Logical formLearned from25 sentences. A proof can be by contradiction.Logical formLearned from24 sentences. Proof may pertain-to a right.Logical formLearned from24 sentences. Proofs may pertain-to artist.Logical formLearned from24 sentences. Proof may pertain-to participation.Logical formLearned from24 sentences. A failure can be a proof.Logical formLearned from24 sentences. A burden of proof may be met.Logical formLearned from24 sentences. A proof may pertain-to a wisdom.Logical formLearned from24 sentences. A proof of claim may be filed.Logical formLearned from24 sentences. Proofs may pertain-to a philosopher.Logical formLearned from24 sentences. A person may want some proof.Logical formLearned from24 sentences. Some sweepstakes may ask for a proof of purchase.Logical formLearned from24 sentences. A proof can be constituted-of-or-filled-with delivery.Logical formLearned from24 sentences. An article can be a proof.Logical formLearned from24 sentences. A proof can be exciting.Logical formLearned from24 sentences.