

Conjecture  Wikipedia, the free encyclopedia 
  Once a conjecture is formally proven true it is elevated to the status of theorem and may be used afterwards without risk in the construction of other formal mathematical proofs. 
  In scientific philosophy, Karl Popper pioneered the use of conjecture to indicate a statement which is presumed to be real, true, or genuine, mostly based on inconclusive grounds, in contrast with a hypothesis (hence theory, axiom, principle), which is a testable statement based on accepted grounds. 
  Until recently, the most famous conjecture was the misnamed Fermat's last theorem, misnamed because although Fermat claimed to have found a clever proof of it, none could be found among his notes after his death. 
 en.wikipedia.org /wiki/Conjecture (758 words) 
