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	<title>CT2.0 &#187; Enthymeme</title>
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	<description>Archive of examples of reasoning for use in Critical Thinking classrooms</description>
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		<title>Bill O&#8217;Reilly &#8211; Katrina</title>
		<link>http://inquiry.mcdaniel.edu/blog/2011/05/11/bill-oreilly-katrina/</link>
		<comments>http://inquiry.mcdaniel.edu/blog/2011/05/11/bill-oreilly-katrina/#comments</comments>
		<pubDate>Wed, 11 May 2011 10:55:11 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Ad Hominem]]></category>
		<category><![CDATA[Enthymeme]]></category>
		<category><![CDATA[Examples]]></category>
		<category><![CDATA[Poisoning the Well]]></category>
		<category><![CDATA[Bill O'Reilly]]></category>
		<category><![CDATA[enthymeme]]></category>
		<category><![CDATA[Katrina]]></category>
		<category><![CDATA[Poverty]]></category>

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		<description><![CDATA[The 'Talking Points' memo from September 2005, during the aftermath of Katrina.]]></description>
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<p>The &#8216;Talking Points&#8217; memo from September 2005, during the aftermath of Katrina.</p>
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<p>The National Public Radio show &#8216;This American Life&#8217; took an audio recording of O&#8217;Reilly&#8217;s commentary to a shelter for the victims of Katrina, and recorded their reactions: <a href="http://www.thisamericanlife.org/radio-archives/episode/296/after-the-flood">After the flood</a>.</p>
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		<title>Focus Factor</title>
		<link>http://inquiry.mcdaniel.edu/blog/2011/05/11/focus-factor/</link>
		<comments>http://inquiry.mcdaniel.edu/blog/2011/05/11/focus-factor/#comments</comments>
		<pubDate>Wed, 11 May 2011 10:33:59 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Cognitive Errors]]></category>
		<category><![CDATA[Enthymeme]]></category>
		<category><![CDATA[Examples]]></category>
		<category><![CDATA[Supplying missing premises]]></category>
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		<category><![CDATA[Focus Factor]]></category>

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		<description><![CDATA[A low-budget late-night ad for a putative performance-enhancing drug 'Focus Factor.' This one ran in 2004-2005.]]></description>
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<p>A low-budget late-night ad for a putative performance-enhancing drug &#8216;Focus Factor.&#8217; This one ran in 2004-2005.</p>
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		<title>Crossfire &#8211; Intelligent Design</title>
		<link>http://inquiry.mcdaniel.edu/blog/2011/03/23/crossfire-intelligent-design/</link>
		<comments>http://inquiry.mcdaniel.edu/blog/2011/03/23/crossfire-intelligent-design/#comments</comments>
		<pubDate>Wed, 23 Mar 2011 20:54:11 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[-Forms of Reasoning-]]></category>
		<category><![CDATA[Enthymeme]]></category>
		<category><![CDATA[Examples]]></category>
		<category><![CDATA[general idiocy]]></category>
		<category><![CDATA[intelligent design]]></category>
		<category><![CDATA[pundits]]></category>
		<category><![CDATA[video]]></category>

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		<description><![CDATA[Clip from a "discussion" about intelligent design from the American TV Show Crossfire in 2004.]]></description>
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<p>A clip from a &#8220;discussion&#8221; about intelligent design from the American TV Show Crossfire in 2004. The argument is so disconnected and hollow, in fact, that it is difficult to classify it as a particular fallacy. It does illustrate how enthymemes work in punditry, as the viewer can supply the missing premises necessary to complete the argument in such a way as he or she can then accept or reject the supplied premises.<br />
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		<title>Freud on Robert&#8217;s Dream Theory</title>
		<link>http://inquiry.mcdaniel.edu/blog/2011/03/06/freud-on-roberts-dream-theory/</link>
		<comments>http://inquiry.mcdaniel.edu/blog/2011/03/06/freud-on-roberts-dream-theory/#comments</comments>
		<pubDate>Sun, 06 Mar 2011 16:24:29 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[-Forms of Reasoning-]]></category>
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		<category><![CDATA[Conditional reasoning]]></category>
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		<description><![CDATA[In <em>The Interpretation of Dreams</em>, Ch V (p. 210-211 of the Avon edition, Strachey translation, Freud argues:
<blockquote>
And there is another objection that can be raised to Robert's theory. If it were really the business of dreams to relieve our memory of the 'dregs' or daytime recollections by a special psychical activity, our sleep would be more tormented and harder worked than our mental life while we are awake. For the number of indifferent impressions from which our memory would need to be protected is clearly immensely large: the night would not be long enough to cope with such a mass. It is far more likely that the process of forgetting indifferent impressions goes forward without the active intervention of our psychical forces.</blockquote>]]></description>
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<p>In <em>The Interpretation of Dreams</em>, Ch V (p. 210-211 of the Avon edition, Strachey translation, Freud argues:</p>
<blockquote><p>And there is another objection that can be raised to Robert&#8217;s theory. If it were really the business of dreams to relieve our memory of the &#8216;dregs&#8217; or daytime recollections by a special psychical activity, our sleep would be more tormented and harder worked than our mental life while we are awake. For the number of indifferent impressions from which our memory would need to be protected is clearly immensely large: the night would not be long enough to cope with such a mass. It is far more likely that the process of forgetting indifferent impressions goes forward without the active intervention of our psychical forces.</p></blockquote>
<p>The argument has two parts: the first is a rejection of Robert&#8217;s theory that psychic forces are active in the process of forgetting the minutia of daily experiences while sleeping. The second posits that a more likely explanation for this phenomenon is that the psychic forces are <em>not</em> active.  The mechanism of forgetting posited by Freud is, of course, left to other sections of the work.</p>
<p>Thus, the argument that is the most interesting for our puposes here is the first.  The first sentence tells us Freud is objecting to Robert&#8217;s theory.</p>
<p>The second sentence in the quotation asserts a conditional:</p>
<blockquote><p>(1) If it were really the business of dreams to relieve our memory of the &#8216;dregs&#8217; or daytime recollections by a special psychical activity, our sleep would be more tormented and harder worked than our mental life while we are awake.</p></blockquote>
<p>Let us formalize this argument by split this into its two parts and removing the qualifiers. The antecedent is (take from the subjunctive tense and put in the literary present):</p>
<blockquote><p>(1a) it is the business of dreams to relieve our memory of the &#8216;dregs&#8217; or daytime recollections by a special psychical activity</p></blockquote>
<p>And the consequent is:</p>
<blockquote><p>(1c) our sleep is more tormented and harder worked than our mental life while we are awake.</p></blockquote>
<p>The use of the subjunctive tense here has already shown that Freud believes the antecedent false. We therefore know that this argument is intended as a form of modus tollens.</p>
<p>Thus, to complete the objection to Roberts, Freud needs to connect Robert&#8217;s theory with the antecedent, and demonstrate that the consequence is false.</p>
<p>Checking back over the text (Ch 1, section G or p. 110-111 in the same edition), we find that Freud characterizes Robert&#8217;s position as holding that &#8220;Dreams serve as a safety-valve for the over-burdened brain.&#8221; He quotes Robert as saying that &#8216;A man depraved of the capacity for dreaming would in course of time become mentally deranged, because a great mass of uncompleted, unworked-out thoughts and superficial impressions would accumulate in his brain and would be bound by their bult to smother the thoughts which should be assimilated into his memory as completed wholes.&#8217; Fair enough. &#8220;dregs of daytime recollections&#8221; is equivalent to the &#8220;great mass of uncompleted, unworked-out thoughts and superficial impressions&#8221; and &#8220;relieve&#8221; is the process of assimilating these &#8220;into his memory as completed wholes.&#8221;</p>
<p>All Freud needs to do then is provide the negation of the consequent and draw the conclusion.  The intended negation must then be contained in the third sentence:</p>
<blockquote><p>For the number of indifferent impressions from which our memory would need to be protected is clearly immensely large: the night would not be long enough to cope with such a mass.</p></blockquote>
<p>Again, we can split this into two parts.  The first must be seen as an extension of the antecedent: the &#8216;uncompleted, un-worked out thoughts and superficial impressions&#8217; are compressed into &#8216;indifferent impressions,&#8217; which are immensly large in number. The heart of the argument, then, is Freud&#8217;s assertion that the night would not be long enough to cope with this &#8216;immensely large&#8217; mass. We can formalize these premises, tying them into the first, thus:</p>
<blockquote><p>(2) The number of different &#8216;dregs&#8217; of daytime recollections is immensely large.</p>
<p>(3) The night is not long enough to cope with an immensely large number of daytime recollections.</p></blockquote>
<p>But that&#8217;s where the argument is an enthymeme: nowhere has Freud, or Roberts, made a claim about the computational speed of the mind.  To truly complete the argument, Freud needs the premise that:</p>
<blockquote><p>(2) The number of different &#8216;dregs&#8217; of daytime recollections is larger than the mind can process in a single night.</p></blockquote>
<p>And that&#8217;s not exactly the same as what he asserts. The reformed (2) still doesn&#8217;t match the consequent in (1c), so we&#8217;ll have to allow that processing such a large mass would create tormenting, hard work for the mind&#8211;at least, more tormented and harder worked than daily life. On a charitable reading, then, we can recharacterize Freud&#8217;s argument thus:</p>
<blockquote><p>IF (1a) it is the business of dreams to relieve our memory of the &#8216;dregs&#8217; or daytime recollections by a special psychical activity THEN (1c) our sleep is more tormented and harder worked than our mental life while we are awake.</p>
<p>(2) The number of different &#8216;dregs&#8217; of daytime recollections is larger than the mind can process in a single night.</p>
<p>(3) processing such a large number of &#8216;dregs&#8217; in a night would make the mind more tormented and harder worked&#8211;at more than being awake.</p>
<p>(4) Sleep does <em>not </em>make the mind more tormented and harder worked than being awake.</p>
<p>(5) Therefore, it is <em>not </em>the business of dreams to relieve our memory of the &#8216;dregs&#8217; or daytime recollections by a special psychical activity</p>
<p>&nbsp;</p></blockquote>
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