If the argument below is valid, name which of the four valid forms of argument is represented. If it is not valid, name the fallacy that is represented.

If the water is filtered, then it does not contain lead.
The water does not contain lead.
Therefore, the water is filtered.

Question

If the argument below is valid, name which of the four valid forms of argument is represented. If it is not valid, name the fallacy that is represented.
 
If the water is filtered, then it does not contain lead.
The water does not contain lead.
Therefore, the water is filtered.

anonymous · Answer

yes

anonymous · Answer

hmmm have to show work.

anonymous · Answer

r u taking my test

jim_thompson5910 · Answer

If the water is filtered, then it does not contain lead translates to  p --> ~q

anonymous · Answer

what test?

jim_thompson5910 · Answer

The water does not contain lead translates to ~q

anonymous · Answer

sandii have u searched it on google

anonymous · Answer

yes i have... and i still got lost... why?

anonymous · Answer

http://studentoffortune.com/question/1007374/math-logic-problems

anonymous · Answer

http://studentoffortune.com/question/818456/negation-and-truth-tables

dumbcow · Answer

Argument is not valid
p --> ~q
we have ~q
however that does not imply p

anonymous · Answer

Jim you still here?

jim_thompson5910 · Answer

yes

anonymous · Answer

what is the fallacy that is represented?

anonymous · Answer

http://answers.yahoo.com/question/index?qid=20110530070815AAy8uXL This is a case of the fallacy of "Affirming the Consequent". Not valid. This argument confuses a statement with its converse.

anonymous · Answer

ty dumbcow but jim was helping me LEARN  the stuff instead of telling me the answer.. :)

jim_thompson5910 · Answer

also known as the converse error

anonymous · Answer

got it sandii

anonymous · Answer

ty hell

anonymous · Answer

ok so u want to know about this topic more right~

jim_thompson5910 · Answer

for example, if I have p --> q and I know that q is true, then it's completely wrong to say that p is true because of q is true

Ie, we can't rewrite p --> q into q --> p because the converse is NOT true

jim_thompson5910 · Answer

that's why it's called the converse error

anonymous · Answer

ok

anonymous · Answer

that is a good spirit keep it up : 
see
Affirming the consequent, sometimes called converse error, is a formal fallacy, committed by reasoning in the form:
If P, then Q.
Q.
Therefore, P.
An argument of this form is invalid, i.e., the conclusion can be false even when statements 1 and 2 are true. Since P was never asserted as the only sufficient condition for Q, other factors could account for Q (while P was false).
The name affirming the consequent derives from the premise Q, which affirms the "then" clause of the conditional premise.

jim_thompson5910 · Answer

does that make sense?

anonymous · Answer

yes it does now..

jim_thompson5910 · Answer

cool

anonymous · Answer

http://www.fallacyfiles.org/afthecon.html http://en.wikipedia.org/wiki/Affirming_the_consequent http://onegoodmove.org/fallacy/affirm.htm

anonymous · Answer

thnx for giving me medal , well i am kushashwa here

anonymous · Answer

yea

anonymous · Answer

u in which standard (grade)

anonymous · Answer

is college math first yr. 2nd time around

anonymous · Answer

oh i m in 8th grade( m 13 years old )

anonymous · Answer

oh ok... ty by now

anonymous · Answer

it should be bye :)

anonymous · Answer

really? your gonna start with me like you did with polpak? thank you BYE NOW!