Part 2926

<p><b>3.</b> <fld>(Anat.)</fld> <def>The exhibition and explanation of a dissection or other anatomical preparation.</def>

<p><b>4.</b> <def>(Mil.) a decisive exhibition of force, or a movement indicating an attack.</def>

<p><b>5.</b> <fld>(Logic)</fld> <def>The act of proving by the syllogistic process, or the proof itself.</def>

<p><b>6.</b> <fld>(Math.)</fld> <def>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.</def>

<cs><mcol><col>Direct</col>, &or; <col>Positive</col>, <col>demonstration</col></mcol> <fld>(Logic & Math.)</fld>, <cd>one in which the correct conclusion is the immediate sequence of reasoning from axiomatic or established premises;</cd> -- opposed to <mcol><col>Indirect</col>, &or; <col>Negative</col>, <col>demonstration</col></mcol> <cd>(called also <altname>reductio ad absurdum</altname>), in which the correct conclusion is an inference from the demonstration that any other hypothesis must be incorrect.</cd></cs>

<h1>Demonstrative</h1> <Xpage=389>

<hw>De*mon"stra*tive</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[F. <ets>d\'82monstratif</ets>, L. <ets>demonstrativus</ets>.]</ety>

<p><b>1.</b> <def>Having the nature of demonstration; tending to demonstrate; making evident; exhibiting clearly or conclusively.</def> "<i>Demonstrative</i> figures."

<i>Dryden.</i>

<blockquote>An argument necessary and <b>demonstrative</b>. <i>Hooker.</i></blockquote>

<p><b>2.</b> <def>Expressing, or apt to express, much; displaying feeling or sentiment; <as>as, her nature was <ex>demonstrative</ex></as>.</def>

<p><b>3.</b> <def>Consisting of eulogy or of invective.</def> "<i>Demonstrative</i> eloquence."

<i>Blair.</i>

<cs><col>Demonstrative pronoun</col> <fld>(Gram.)</fld>, <cd>a pronoun distinctly designating that to which it refers.</cd></cs>

<h1>Demonstrative</h1> <Xpage=389>

<hw>De*mon"stra*tive</hw>, <tt>n.</tt> <fld>(Gram.)</fld> <def>A demonstrative pronoun; <as>as, "this" and "that" are <ex>demonstratives</ex></as>.</def>

<h1>Demonstratively</h1> <Xpage=389>

<hw>De*mon"stra*tive*ly</hw> <tt>(?)</tt>, <tt>adv.</tt> <def>In a manner fitted to demonstrate; clearly; convincingly; forcibly.</def>

<h1>Demonstrativeness</h1> <Xpage=389>

<hw>De*mon"stra*tive*ness</hw>, <tt>n.</tt> <def>The state or quality of being demonstrative.</def>

<h1>Demonstrator</h1> <Xpage=389>

<hw>Dem"on*stra`tor</hw> <tt>(?; 277)</tt>, <tt>n.</tt> <ety>[L.: cf. F. <ets>d\'82monstrateur</ets>.]</ety>

<p><b>1.</b> <def>One who demonstrates; one who proves anything with certainty, or establishes it by indubitable evidence.</def>

<p><b>2.</b> <fld>(Anat.)</fld> <def>A teacher of practical anatomy.</def>

<h1>Demonstratory</h1> <Xpage=389>

<hw>De*mon"stra*to*ry</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Tending to demonstrate; demonstrative.</def>

<i>Johnson.</i>

<h1>Demorage</h1> <Xpage=389>