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Unique case of OR conditional reasoning

Posted: Thu Sep 14, 2017 12:06 am
by lathlee
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

Re: Unique case of OR conditional reasoning

Posted: Sat Sep 16, 2017 1:46 am
by James Finch
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!

Re: Unique case of OR conditional reasoning

Posted: Sat Sep 16, 2017 3:15 pm
by lathlee
Yep it does clear up a lot. thx