CT2.0 » A-Type http://inquiry.mcdaniel.edu Archive of examples of reasoning for use in Critical Thinking classrooms Tue, 17 Jan 2012 21:19:53 +0000 en hourly 1 http://wordpress.org/?v=3.1.1 Contraposition A http://inquiry.mcdaniel.edu/blog/2011/06/08/contraposition-a/ http://inquiry.mcdaniel.edu/blog/2011/06/08/contraposition-a/#comments Wed, 08 Jun 2011 11:37:26 +0000 admin http://inquiry.mcdaniel.edu/?p=3943

Flash-based interactive example of Venn diagram-enhanced categorical reasoning. This one is of A-type (Universal Positive) contraposition. Does ‘A cats are felines’ imply ‘All non-cats are non-felines’?

 

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Flash-based interactive example of Venn diagram-enhanced categorical reasoning. This one is of A-type (Universal Positive) contraposition. Does ‘A cats are felines’ imply ‘All non-cats are non-felines’?

 

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]]> http://inquiry.mcdaniel.edu/blog/2011/06/08/contraposition-a/feed/ 0 Conversion A http://inquiry.mcdaniel.edu/blog/2011/06/08/conversion-a/ http://inquiry.mcdaniel.edu/blog/2011/06/08/conversion-a/#comments Wed, 08 Jun 2011 11:14:25 +0000 admin http://inquiry.mcdaniel.edu/?p=3914

Flash-based interactive example of Venn diagram-enhanced categorical reasoning. This one is of A-type (Universal Affirmative) conversion. Does ‘All cats are felines’ imply ‘All felines are cats’?

 

 

]]> http://inquiry.mcdaniel.edu/blog/2011/06/08/conversion-a/feed/ 0 Obversion A http://inquiry.mcdaniel.edu/blog/2010/07/09/obversion/ http://inquiry.mcdaniel.edu/blog/2010/07/09/obversion/#comments Fri, 09 Jul 2010 17:28:21 +0000 admin http://inquiry.mcdaniel.edu/?p=2740

Flash-based interactive example of Venn diagram-enhanced categorical reasoning. This one is of A-type (Universal Affirmative) Obversion. Does ‘All cats are felines’ imply ‘No…

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Flash-based interactive example of Venn diagram-enhanced categorical reasoning. This one is of A-type (Universal Affirmative) Obversion. Does ‘All cats are felines’ imply ‘No cats are Non-felines’?

Obversion: negate the quality (‘All’ becomes ‘No’) and take the term complement of the predicate (‘P’ becomes ‘Non-P’).

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