decidable vs powerful

decidable

adj
  • capable of being decided. 

  • in intuitionistic logic, a proposition P is decidable in a given theory if it can be proven from the theory that "either P or not P", i.e. in symbols: P∨¬P. 

  • describing a set for which there exists an algorithm that will determine whether any element is or is not within the set in a finite amount of time. 

powerful

adj
  • Having, or capable of exerting power, potency or influence. 

  • Leading to many or important deductions. 

  • Large; capacious; said of veins of ore. 

adv
  • Synonym of very 

How often have the words decidable and powerful occurred in a corpus of books? (source: Google Ngram Viewer )