SOLUTION: Determine if the argument is valid or invalid. Give a reason to justify answer. If the bell rings, then we answer the door. The bell rings. We answer the door. O Valid

Algebra ->  Probability-and-statistics -> SOLUTION: Determine if the argument is valid or invalid. Give a reason to justify answer. If the bell rings, then we answer the door. The bell rings. We answer the door. O Valid       Log On


   



Question 475334: Determine if the argument is valid or invalid. Give a reason to justify answer.
If the bell rings, then we answer the door.
The bell rings.
We answer the door.
O Valid by the law of detachment
O Valid by the law of contraposition
O Invalid by fallacy of the converse
O Invalid by fallacy of the inverse
O Valid by the law of syllogism
O Valid by disjunctive syllogism

Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
Here's a decent explanation for you I found on the web.
http://en.allexperts.com/q/Geometry-2060/law-detachment-syllogism.htm
The answer to your question is the Law of Detachment.
That law states that:
p->q
p is true therefore q has to be true.