Ineed with this logic puzzle,
given: s v n
(l^t) -> k
~l -> ~n
t
k
prove: s

i have to get this in by tomorrow, so the faster the better. to all who contribute in advance!

I cannot reach a meaningful solution from the given information. To prove that S was always true, you would have to prove that N was always false. To prove that N was always false you would have to prove that L was always false. For the statement (L ^ T) -> K to be true, you only need K to be true, so L can be either true or false.
Therefore, because of the aforementioned knowledge, I do not believe that you can prove S to be true.