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Valid or Invalid Argument Fill the Blanks

por Olena Hawranick
1

q p ~ p → ~ q

Valid Argument type 1 ( Modus Ponens ) :
p ?

- - - - - - - - - - - -
q

2

~q q ~ →

Valid Argument type 2 ( Modus Tollens )
p ?

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3

Invalid Valid2 Valid1

a ? b
a
- - - - - - - -
b
Argument

4

Valid2 Invalid Valid1

a ? b
b
- - - - - - - -
a
Argumen t

5

Valid2 Valid1 Invalid

a ? b
~b
- - - - - - - -
~a
Argumen t

6

Valid2 Invalid Valid1

a ? b
~a
- - - - - - - -
~b
Argumen t

7

valid2 b b c c valid invalid

All college students read books . ( If you are a college student ( c ) then you read books ( b ) ) .
I am a college student .
So , I read books .
?

_________

Valid or invalid ?

8

~ b invalid valid1 c ~ valid b c

All college students read books . ( If you are a college student ( c ) then you read books ( b ) ) .
I do not read books .
So , I am not a college student .
?

____

Valid or invalid ?

9

valid s invalid valid2 h s h

If you are a student ( s ) then you do homework ( h ) .
I am a student .
So , I do homework .
?

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Valid or invalid ?

10

invalid s ~ h valid1 s ~ h valid

If you are a student ( s ) then you do homework ( h ) .
I do not do homework .
So , I am not a student .
?

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Valid or invalid ?

11

valid2 invalid a valid s s a

All squirrels like apples . ( If this creature is a squirrel ( s ) then she likes apples ( a ) ) .
This creature is a squirrel .
So , she likes apples .
?

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Valid or invalid ?

12

invali i r valid1 r i valid2

If it is raining ( r ) then we stay inside ( i ) .
We stay inside .
So , it is raining .
?

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Valid or invalid ?

13

p h ~ valid2 invali valid1 ~ h p

If I promise to help ( p ) then I will help ( h ) .
I did not promise to help .
So , I wont help .
?

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Valid or invalid ?

14

h valid1 Invali valid2 ~ d d h ~

If I have homework due tomorrow ( d ) then I do my homework ( h ) .
I do not have homework due tomorrow .
So , I won't do my homework .
?

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Valid or invalid ?