An one may have a proof.Logical formLearned from16 sentences. Proof can be positive that something-is-the-case.Logical formLearned from16 sentences. (Way illogicalness) can be a proof.Logical formLearned from16 sentences. Proof may pertain-to beliefs.Logical formLearned from16 sentences. A proof can be undisputable.Logical formLearned from16 sentences. (Freezing temperatures) can be proof of a need.Logical formLearned from16 sentences. Proof may pertain-to a competence.Logical formLearned from16 sentences. A person may have some (bedroom child proof home).Logical formLearned from16 sentences. Proof may pertain-to an incompetence.Logical formLearned from16 sentences. Some bit can be constituted-of-or-filled-with proof.Logical formLearned from16 sentences. A proof may pertain-to theorems.Logical formLearned from16 sentences. Attacks can be a proof.Logical formLearned from16 sentences. A US-city can be a proof.Logical formLearned from16 sentences. (Paper certificates) can be proof of ownership.Logical formLearned from16 sentences. A proof of extraterrestrial intelligence may begin as a spike.Logical formLearned from16 sentences.