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Tautology vs Heuristic - What's the difference?

tautology | heuristic |

As nouns the difference between tautology and heuristic

is that tautology is (uncountable) redundant use of words while heuristic is a heuristic method.

As an adjective heuristic is

relating to general strategies or methods for solving problems.

tautology

English

Noun

  • (uncountable) redundant use of words
    • It is tautology to say, "Forward Planning".
  • (countable) An expression that features tautology.
    • ''The expression "raze to the ground" is a tautology, since the word "raze" includes the notion "to the ground".
  • * 1946 , Bertrand Russell, History of Western Philosophy :
    • Pure mathematics consists of tautologies , analogous to ‘men are men’, but usually more complicated.
  • (countable, logic) A statement that is true for all values of its variables
    • Given a Boolean A, "A OR (NOT A)" is a tautology .
    A logical statement which is neither a tautology nor a contradiction is a contingency.
    A tautology''' can be verified by constructing a truth tree for its negation: if all of the leaf nodes of such truth tree end in X's, then the original (pre-negated) formula is a '''tautology .

    Antonyms

    * contradiction in terms * (in logic) contradiction * (literary) oxymoron

    Coordinate terms

    * (in logic) contingency, contradiction

    Derived terms

    * tautological * tautologically * tautologise * tautologist * tautologous * tautologously

    See also

    * pleonasm * redundancy * (Tautology) English words suffixed with -ology

    heuristic

    English

    (wikipedia heuristic)

    Adjective

    (en adjective)
  • Relating to general strategies or methods for solving problems.
  • (computing, of a method or algorithm) that solves a problem more quickly but is not certain to arrive at an optimal solution.
  • * {{quote-book, year=2002, author=Te Chiang Hu, Man-tak Shing, title=Combinatorial Algorithms citation
    • , passage=If a heuristic algorithm works for most of the input data or its maximum percentage error is tolerable, we may prefer the heuristic algorithm to an optimum algorithm that requires a long time.}}

    Derived terms

    * heuristically * heuristical

    Noun

    (en noun)
  • A heuristic method.
  • The art of applying heuristic methods.