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1、LegalReasoning：DeductiveReasoningV.InductiveReasoning“Everylegalanalysisshouldbeginatthepointofreason,continuealongapathoflogicandarriveatafundamentallyfairresult.”DouglasLindAwell-knowncartoonaboutjudicialreasoningisillustrative.Nine distinguishedjudgesi
2、nrobessitinarowbehindahighrostrum.Solemn expressionsgracetheirfaces,andonejudgeisreadingfromapieceofpaper. "Mydissentingopinionwillbebrief,"hesays."You'reallfullofcrap."Case1A:Allmenaremortal.B:Socratesisaman.C:______________.?Question:Whatreasoningisused
3、inthiscase?A,BandCcanbetitledas____,____,and_____.KeytoCase1DeductiveReasoning:Majorpremise:Allmenaremortal.MinorPremise:Socratesisaman.Conclusion:Socratesismortal.Attention:Ifweuseinductivereasoninghere,therewouldbeaninvalidapplicationifoneconcluded“Ther
4、efore,Socratesisallmen”Case2-DeductiveReasoningMajorPremise:Afoothasfivetoes.MinorPremise:Thedistanceisonefoot.Conclusion:Thedistanceisfivetoes.Question:What’syourcommentonit？KeytoCase2Asyllogismmayproduceaninvalidconclusionwhenthemeaningofwordsischangedf
5、romthemajorpremisetotheminorpremise.Case3-LegalDeductiveReasoningRule:CarryingaConcealedPistolisaFelony.Facts:Arenaswascarryingaconcealedpistol.LegalConclusion:Arenascommittedafelony.Case4-LegalDeductiveReasoningRule:Tobeenforceable,acontractforthesaleofg
6、oodsforapriceof$500ormoremustbeinwriting.Facts:Theoralcontractforthesaleofthesegoodswasnotfor$500ormore.Legalconclusion:Thecontractinthiscasewasenforceable.Case5-LegalDeductiveReasoningRule:Theownerofpropertywhichhasbeenstolenfromhimisentitledtorecoverthe
7、propertyfromabonafidepurchaserfromthethief,butmaynotrecoverthepropertyfromabonafidepurchaserfromapersonwhoobtainedpropertyfromtheownerbyfraudulentinducementFacts:DefendantHalewasabonafidepurchaserfromAbbott,whoobtainedthepropertyfromtheowner,Costello,byme
8、ansoffraudulentinducementLegalConclusion:Costello,theowner,cannotrecoverthepropertyfromHale.SummaryofDeductiveReasoningDerivesitsconclusionbyreasoningfromthemajor(i.e.,general)premisetotheminor(i.e.,particular)premi
