A male may have a proof.Logical formLearned from455 sentences. Persons may have a proof.Logical formLearned from452 sentences. A proof can be undeniable.Logical formLearned from410 sentences. A person may need proof.Logical formLearned from389 sentences. A proof can be physical.Logical formLearned from387 sentences. A person may live proof.Logical formLearned from386 sentences. A proof can be positive.Logical formLearned from383 sentences. A proof may pertain-to a conjecture.Logical formLearned from379 sentences. A proof can be documented.Logical formLearned from374 sentences. A proof can be strong.Logical formLearned from369 sentences. Proof may be needed.Logical formLearned from366 sentences. A person can be a proof.Logical formLearned from347 sentences. A proof can be simple.Logical formLearned from346 sentences. A proof can be constituted-of-or-filled-with claim.Logical formLearned from343 sentences. Proof may pertain-to an existence.Logical formLearned from340 sentences.