Definition of Unprovable. Meaning of Unprovable. Synonyms of Unprovable

- In mathematical logic, independence is the unprovability of some specific sentence from some specific set of other sentences. The sentences in this set...
- always be statements about natural numbers that are true, but that are unprovable within the system. The second incompleteness theorem, an extension of...
- variation of the theorem unprovable in this system. Much later, the Robertson–Seymour theorem would give another theorem unprovable by Π1 1-CA0. Ordinal analysis...
- Robert was accused by some writers of killing Richard, a plausible but now unprovable charge. Conditions in Normandy were unsettled, as noble families despoiled...
- operate but with the advantage of the source being unknown or at least unprovable. There is ongoing debate as to whether weaponised directed energy devices...
- subject's dream experience itself. So, dreaming by non-humans is currently unprovable, as is dreaming by human fetuses and pre-verbal infants. Preserved writings...
- eventually terminates at 0. Laurence Kirby and Jeff Paris showed that it is unprovable in Peano arithmetic (but it can be proven in stronger systems, such as...
- others of a crime, which could be libelous if the allegations are false or unprovable. In April 2017, FetLife was accessed by Brendt Christensen, the killer...
- to prove the postulate—which would make it different from the other, unprovable, four postulates. Much of Book 5 was probably ascertained from earlier...
- efficient. Faced with an unprovable statement, a complete proof procedure may sometimes succeed in detecting and signalling its unprovability. In the general case...