inexactness vs sophism

inexactness

noun
  • The characteristic or quality of being inexact; a lack of precision, accuracy, or certainty. 

sophism

noun
  • Sophistic, fallacious reasoning or argumentation. 

  • A flawed argument, superficially correct in its reasoning, usually designed to deceive. 

  • The school of the sophists in antiquity; their beliefs and method of teaching philosophy and rhetoric. 

  • An intentional fallacy. 

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