What is the difference between equivalence and analogy?

equivalence | analogy |


As nouns the difference between equivalence and analogy

is that equivalence is (uncountable) the condition of being equivalent or essentially equal while analogy is a relationship of resemblance or equivalence between two situations, people, or objects, especially when used as a basis for explanation or extrapolation.

As a verb equivalence

is to be equivalent or equal to; to counterbalance.

equivalence

Noun

(en noun)
  • (uncountable) The condition of being equivalent or essentially equal.
  • (countable, mathematics) An equivalence relation;
  • (uncountable, logic) The relationship between two propositions that are either both true or both false.
  • (chemistry) The quantity of the combining power of an atom, expressed in hydrogen units; the number of hydrogen atoms can combine with, or be exchanged for; valency.
  • a Boolean operation that is TRUE when both input variables are TRUE but otherwise FALSE; the XNOR function.
  • A number in intersection theory. A positive-dimensional variety sometimes behaves formally as if it were a finite number of points; this number is its equivalence.
  • Verb

    (equivalenc)
  • To be equivalent or equal to; to counterbalance.
  • (Sir Thomas Browne)

    analogy

    Noun

    (analogies)
  • A relationship of resemblance or equivalence between two situations, people, or objects, especially when used as a basis for explanation or extrapolation.
  • * 1841 , , Essays: First Series , ch. 6:
  • Yet the systole and diastole of the heart are not without their analogy in the ebb and flow of love.
  • * 1869 , , The Uncommercial Traveller , ch. 18:
  • Is there any analogy , in certain constitutions, between keeping an umbrella up, and keeping the spirits up?
  • * 1901 , , The Valley of Decision , ch. 12:
  • The old analogy likening the human mind to an imperfect mirror, which modifies the images it reflects, occurred more than once to Odo.
  • * 1983 , " How to Write Programs," Time , 3 Jan.:
  • Perhaps the easiest way to think of it is in terms of a simple analogy : hardware is to software as a television set is to the shows that appear on it.
  • * 2002 , , Gone for Good , ISBN 9780440236733, p. 75:
  • A kid living on the street is a bit like — and please pardon the analogy here — a weed.

    Derived terms

    * disanalogy * false analogy

    See also

    * metaphor * simile * example * homology * parable * parallelism English words prefixed with ana-