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Conceptualizing "Unless" in Arguments and Games
Posted: Fri Dec 10, 2010 12:04 pm
by StrictlyLiable
For the record, I tried to search for this information but I can't find it. This is a last chance effort to make sure that I am thinking of it right, and to get some advice to expedite the process.
I realize that its "IF NOT" then the conclusion, but taking PT 61 some of the argument answers flip-flop all crazy and makes them time consuming. So what do you guys do to figure these out faster?
Re: Conceptualizing "Unless" in Arguments and Games
Posted: Fri Dec 10, 2010 12:09 pm
by homestyle28
X unless Y :: ~Y --> X :: ~X-->Y
Re: Conceptualizing "Unless" in Arguments and Games
Posted: Fri Dec 10, 2010 12:11 pm
by typ3
61 LR1 and a few problems in LR2 were some of the most difficult LR problems I have seen, at least in modern tests.
Take for example this unless.
Jimmy is tall unless his parents are space cadets.
So, what do you know if jimmy is tall? His parents aren't space cadets.
What do you know if his parents are space cadets? He isn't tall. Just turn it into formal logic statements and you'd be fine.
Re: Conceptualizing "Unless" in Arguments and Games
Posted: Fri Dec 10, 2010 3:25 pm
by kâsh
Per the rules of "unless", wouldn't it become:
~Tall -> Space Cadets
~Space Cadets -> Tall
??
Re: Conceptualizing "Unless" in Arguments and Games
Posted: Fri Dec 10, 2010 5:28 pm
by iamcutdacheck
homestyle28 wrote:X unless Y :: ~Y --> X :: ~X-->Y
+1
Re: Conceptualizing "Unless" in Arguments and Games
Posted: Fri Dec 10, 2010 5:56 pm
by youknowryan
kâsh wrote:Per the rules of "unless", wouldn't it become:
~Tall -> Space Cadets
~Space Cadets -> Tall
??
this is correct.