demand vs proposition

demand

verb
  • To require of someone. 

  • To claim a right to something. 

  • To ask forcefully for information. 

  • To request forcefully. 

  • To issue a summons to court. 

noun
  • An urgent request. 

  • The desire to purchase goods and services. 

  • An order. 

  • The amount of a good or service that consumers are willing to buy at a particular price. 

  • A forceful claim for something. 

  • A requirement. 

  • More precisely peak demand or peak load, a measure of the maximum power load of a utility's customer over a short period of time; the power load integrated over a specified time interval. 

proposition

verb
  • To make an offer or suggestion to (someone). 

  • To make a suggestion of sexual intercourse to (someone with whom one is not sexually involved). 

noun
  • An assertion so formulated that it can be considered true or false. 

  • A statement of religious doctrine; an article of faith; creed. 

  • In some states, a proposed statute or constitutional amendment to be voted on by the electorate. 

  • The terms of a transaction offered. 

  • An assertion which is provably true, but not important enough to be called a theorem. 

  • The act of offering (an idea) for consideration. 

  • An idea or a plan offered. 

  • A complete sentence. 

  • The part of a poem in which the author states the subject or matter of it. 

  • The content of an assertion that may be taken as being true or false and is considered abstractly without reference to the linguistic sentence that constitutes the assertion; (Aristotelian logic) a predicate of a subject that is denied or affirmed and connected by a copula. 

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