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Lecture 8

PHL145H5 Lecture Notes - Lecture 8: Deductive Reasoning, Hasty Generalization, Lottery Paradox


Department
Philosophy
Course Code
PHL145H5
Professor
Nate Charlow
Lecture
8

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


 !"#$%&'' !
Induction vs. Deduction
#%'('&')*#%#+('&#
) ',
) ('(''(('-(+
) ('+'%+

'%#
((#'(,
'#%,(&%''#--''-(')
'#&''-(&%'+((''-')'(#%'

'('-'%''#(#%.
/#%'--+$'-''-('',
')-(&%''('%'
-')-(&%''''(''-(
''#'
0(-''''#+((!#%#''''-''
!)012!(-''''#+((!#%#'-'''
-'')0+-('''#(
Strength vs. Validity
Defeasibility
'#($'-','##%%+$+(
&%'')#%%+(&%''
Degrees
'#($'#,#%'%''!'#+(#%'
%''!
('#(+((-'-'#(%'('#('%'()+
(-+#,!'##%'%+$)!#%'
&'%'-('+(''#(%(&
+!'+'

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Which is Preferable?
('%#('%%$#%'-#%')(3'')(
('#%'%((
(%-#%3'&%'''&##%)
('#%'&('%%-4'5-#(''
,6&67)(--'(-((&%'-(-
#%'67('#''!+((&%'-(#(#%'
7('#'-'!)
Uncertainty and Deduction
%&('8(&,'%'$6(-(#%''
''-(''#((&%''!+(((
#%'%$('')
#%'#%$(''''+-(
&%''
$(-%''#%'$%&%''
(9:
)$:+';;);;;;7$!
)$:+';;);;;;7$!
%)$++
(''('('&<
'(-+#',
Linda is 31 years old, single, outspoken, and very bright. She majored in philosophy. As a student, she
was deeply concerned with issues of discrimination and social justice, and also participated in anti-nuclear
demonstrations
',!9'$)!9'$'(-%'%%)0(('
%&.-'=33%%(4 
>9$(
-&%''?))%&($(-'''(#('($(-?))
/!@/ *!
/ *!@/!
Statistical Generalization
''-6-(''-#&&&('##(
%$'#-'%%'%&!-%(''-'%&-(#&
"'A8
) ''%,%%'-'%&-
) %%'-
+((&''#8''#&'('+'(-+#6'',
'('%&##(.
'('%&'&'.
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