For each of the following logical arguments, either provide a formal proof showing the argument is valid, or an assignments of truth values that shows the argument is invalid.

valid O invalid circle one): c. The argument is 1. P V r) 2. PVS 3. Or 4. ( A ) u 5. VI 6. ..u If you stated the argument is invalid, provide an invalidating truth assignment here: Q- IS- 20.0.0.0 If you stated the argument is valid, provide a proof here you can delete the rows you don't need): inference rule valid O invalid circle one): c. The argument is 1. P V r) 2. PVS 3. Or 4. ( A ) u 5. VI 6. ..u If you stated the argument is invalid, provide an invalidating truth assignment here: Q- IS- 20.0.0.0 If you stated the argument is valid, provide a proof here you can delete the rows you don't need): inference rule