Determine whether the following argument is valid or invalid. Give a formal proof.
Give a formal proof with reasons for each step or explain why the argument is
invalid.
Jud does not like fish, but does like dogs.
If someone does not like dogs, then they like cats or fish.
Anyone who likes dogs and cows does not like cats.
Therefore Jud likes cats.

Question

Determine whether the following argument is valid or invalid. Give a formal proof. 
Give a formal proof with reasons for each step or explain why the argument is 
invalid.
Jud does not like fish, but does like dogs.
If someone does not like dogs, then they like cats or fish.
Anyone who likes dogs and cows does not like cats.
Therefore Jud likes cats.

anonymous · Answer

wrong subject this is algebra

paxpolaris · Answer

still Math :)...

seems invalid.

anonymous · Answer

hows it math

anonymous · Answer

How can I prove it @PaxPolaris ? Thank you