CR - Conditional Reasoning.

[marik]

Hi,

Can any one help me comprehend the fundamentals and the difference of Sufficient and Necessary condition.

I have read about it in the CR Bible, but in vain.
Kindly help.

Thanks in Advance.
- Marik

[David@VeritasPrep]

It is pretty simple really.

A sufficient condition is one that is "enough" to make something happen. For example, if you are admitted to Business school we know that you have attended college.

Getting admitted is "enough" to guarantee that you have attended college. So you can use dashes to indicate the relationship. Admitted to business school --- attended college.

Now attended college is the necessary condition. It is "required" in order for you to get admitted to business school. So attending college is the necessary and getting admitted is the sufficient condition.

Now it does not work the other way...if I know that you have attended college this is not enough to know that you are admitted to business school. Attending college is NOT a sufficient condition! And being admitted to business school is not a necessary condition. You can attend college without going to business school right?

Does that make sense?