## Can a false dichotomy/dilemma be inferred from a premise

Prepare for the LSAT or discuss it with others in this forum.
timmydoeslsat

Posts: 148
Joined: Wed Aug 03, 2011 2:07 pm

### Can a false dichotomy/dilemma be inferred from a premise

For instance:

We cannot do X. Since our only other choice is to do Y, we should consider how best to accomplish Y.

We have 2 premises.

1. We cannot do X.
2. Only other choice is to do Y

Would we be able to attack this as a false choice? Or, am I to accept as fact that the only other choice is to do Y. It seems that I would simply accept that idea as fact.

But, I ask, can a false dilemma be inferred from a premise, such as our second one? Or do we concede the idea without evidence. We are to accept premises as fact without evidence to its backing. So it would seem to be that we cannot infer a false choice from that statement above.

VasaVasori

Posts: 571
Joined: Sun Dec 11, 2011 2:36 pm

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Last edited by VasaVasori on Sat May 02, 2015 10:58 pm, edited 1 time in total.

angrybird

Posts: 199
Joined: Mon Mar 26, 2012 2:15 am

### Re: Can a false dichotomy/dilemma be inferred from a premise

this thread is a false dilemma

bp shinners

Posts: 3086
Joined: Wed Mar 16, 2011 7:05 pm

### Re: Can a false dichotomy/dilemma be inferred from a premise

VasaVasori wrote:"X and Y are two ways to accomplish A, and we can't do X, so we'll have to do Y. - This argument is most vulnerable to criticism because... it fails to consider that there is another way to accomplish A."

Yeah, the difference between what you said and what the OP said (as you noted) is the 'only' in the OP's question. If the LSAT said that, then you'd be forced to accept that Y is the only other option, and therefore that's the option you must go with (assuming that you have to take some action).

However, every time I can think of on the LSAT, it presented it as two options without noting that they were the only options available. It's actually a pretty big tip-off that it's an exclusivity fallacy question.

jkpolk

Posts: 1180
Joined: Thu Nov 10, 2011 10:44 am

### Re: Can a false dichotomy/dilemma be inferred from a premise

I was under the impression that all explicit premises are true. So the situation you pose would be valid.