dem·on·stra·tion /ˌdɛmənˈstreʃən/
 示威;論證,示範,顯示,展示,演示,表示


 dem·on·stra·tion /ˌdɛmənˈstreʃən/ 名詞
 示教,實物教授,論證,說明,示範


 demonstration
 示範


 demonstration
 示範


 Dem·on·stra·tion n.
 1. The act of demonstrating; an exhibition; proof; especially, proof beyond the possibility of doubt; indubitable evidence, to the senses or reason.
    Those intervening ideas which serve to show the agreement of any two others are called =\“proofs;” and where agreement or disagreement is by this means plainly and clearly perceived, it is called demonstration.\=   --Locke.
 2. An expression, as of the feelings, by outward signs; a manifestation; a show.  See also sense 7 for a more specific related meaning.
    Did your letters pierce the queen to any demonstration of grief?   --Shak.
    Loyal demonstrations toward the prince.   --Prescott.
 3. Anat. The exhibition and explanation of a dissection or other anatomical preparation.
 4. (Mil.) a decisive exhibition of force, or a movement indicating an attack.
 5. Logic The act of proving by the syllogistic process, or the proof itself.
 6. Math. A course of reasoning showing that a certain result is a necessary consequence of assumed premises; -- these premises being definitions, axioms, and previously established propositions.
 Direct demonstration, or  Positive demonstration, Logic & Math., one in which the correct conclusion is the immediate sequence of reasoning from axiomatic or established premises; -- opposed to Indirect demonstration, or Negative demonstration (called also reductio ad absurdum), in which the correct conclusion is an inference from the demonstration that any other hypothesis must be incorrect.

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 demonstration
      n 1: a show or display; the act of presenting something to sight
           or view; "the presentation of new data"; "he gave the
           customer a demonstration" [syn: presentation, presentment]
      2: a show of military force or preparedness; "he confused the
         enemy with feints and demonstrations"
      3: a public display of group feelings (usually of a political
         nature); "there were violent demonstrations against the
         war" [syn: manifestation]
      4: proof by a process of argument or a series of proposition
         proving an asserted conclusion [syn: monstrance]
      5: a visual presentation showing how something works; "the
         lecture was accompanied by dramatic demonstrations"; "the
         lecturer shot off a pistol as a demonstration of the
         startle response" [syn: demo]