inference vs porism

inference

noun
  • That which is inferred; a truth or proposition drawn from another which is admitted or supposed to be true; a conclusion; a deduction. 

  • The act or process of inferring by deduction or induction. 

porism

noun
  • A proposition affirming the possibility of finding such conditions as will render a certain determinate problem indeterminate or capable of innumerable solutions. 

  • A corollary. 

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