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Conditional logic question (either or statements)
Posted: Tue Aug 09, 2011 2:44 pm
by THE_U
I'm drilling parallel reasoning LR and came across something that confused me a little. On PT26, section 2, #16, how would one go about diagramming the first statement? I diagrammed it NP -> CrS or CmS. But when diagramming the rest of it, the conclusion doesn't seem to follow. Does that statement need to be NP -> CrS and CmS instead and if so, why? Thanks!
Re: Conditional logic question (either or statements)
Posted: Tue Aug 09, 2011 2:46 pm
by kaiser
You can type out the one statement itself, just don't type out the whole question or the answer choices. That way it will be easier to help you.
Re: Conditional logic question (either or statements)
Posted: Tue Aug 09, 2011 2:55 pm
by THE_U
I actually JUST figured it out, I think. And it had nothing to do with my diagramming. Can someone verify it for me though? The question basically says
A -> B or C
B -> C
---------------
A -> C
The conclusion follow because either way you are going to get C, right? If A then B, thus C (transitive) or by not choosing B in the first premise and straight up A -> C.
Re: Conditional logic question (either or statements)
Posted: Tue Aug 09, 2011 3:42 pm
by Asleep
Yes