Philosophy

Explain the concept of logical validity in an essay of two double-spaced pages.  Your essay should have three parts.

-In the first part, introduce what the concept of validity is about.  What does logical validity apply to?  Why is it a good thing for something to be logically valid?

-In the second part, give the definition of logical validity.

-In the third part, give an example where the concept of logical validity applies, and an example where the concept does not apply.  With the first example, explain why the definition is satisfied, and with the second explain why it is not satisified.