can you infer a necessary condition from "almost invariably"

sangr
Posts: 459
Joined: Sun Jun 07, 2009 4:45 pm

can you infer a necessary condition from "almost invariably"

Postby sangr » Thu Sep 09, 2010 11:25 am

so im just wondering if
A "almost invariably" leads to B

can you call that causation, or necessary/sufficient

User avatar
StrictlyLiable
Posts: 214
Joined: Tue Dec 29, 2009 1:34 pm

Re: can you infer a necessary condition from "almost invariably"

Postby StrictlyLiable » Thu Sep 09, 2010 11:30 am

Seems possible. "invariably" alone seems better though.

youknowryan
Posts: 182
Joined: Mon Aug 18, 2008 3:20 am

Re: can you infer a necessary condition from "almost invariably"

Postby youknowryan » Fri Sep 10, 2010 12:47 am

sangr wrote:so im just wondering if
A "almost invariably" leads to B

can you call that causation, or necessary/sufficient


almost invariably = most, which is numerically 51% to 100%. It therefore cannot be any of the above.


invariably = all and will allow for the above.

dakatz
Posts: 2460
Joined: Sat Mar 29, 2008 4:19 pm

Re: can you infer a necessary condition from "almost invariably"

Postby dakatz » Fri Sep 10, 2010 12:55 am

Almost invariably does not denote 100%. Something is only necessary when it follows 100% of the time.

"A sugar rush is almost invariably followed by a crash"

Does this mean that a crash will always follow a sugar rush? No, so the argument isn't deductive. Remember that the LSAT is very specific about these things and those are the types of mixups they expect people to make.

User avatar
blhblahblah
Posts: 170
Joined: Mon Aug 27, 2007 10:54 pm

Re: can you infer a necessary condition from "almost invariably"

Postby blhblahblah » Fri Sep 10, 2010 1:58 am

In the scientific world, when two variables co-occur at a frequency that meets an acceptable threshold, it can be said that when one occurs the other will occur (controlling of course for third variables, directionality, etc.).

However, for purposes of LSAT, anything less than always is only correlation

whymeohgodno
Posts: 2508
Joined: Mon Jul 19, 2010 8:15 pm

Re: can you infer a necessary condition from "almost invariably"

Postby whymeohgodno » Fri Sep 10, 2010 2:17 am

It's very simple.

No.




Return to “LSAT Prep and Discussion Forum”

Who is online

Users browsing this forum: dontsaywhatyoumean, galeatus and 4 guests