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Unique case of OR conditional reasoning

lathlee
LSAT Master
 
Posts: 209
Joined: Fri Apr 01, 2016 1:53 pm
Points: 192

Hi Guys, this is my question

Hypothetically
this is the correct diagram for the random question,

If (Negation) A & (Negation) B :arrow: C


Now Contrapositive:

If


Negation C :arrow: A Occurs ( I know it supposed to be OR)


Let's say a question in this logical game asks about B. B Can or Cannot occur, right?



But this is the dilemma I see: If B occurs isn't that

A

&

B
James Finch
PowerScore Staff
PowerScore Staff
 
Posts: 157
Joined: Wed Sep 06, 2017 5:06 pm
Points: 157

Hi Lathlee,

If I'm understanding your question correctly, then yes, C would mean that either A or B or both could occur, but that at least A or B must occur. So:

A + B :arrow: C

then:

C :arrow: A or B (or A + B)

Hope this clears things up!
lathlee
LSAT Master
 
Posts: 209
Joined: Fri Apr 01, 2016 1:53 pm
Points: 192

Yep it does clear up a lot. thx