A. Translate the argument provided in this prompt into formal logic and then use the truth-tree decision procedure (relying on Proof Tools or pencil/pen and paper) to determine whether the argument is deductively valid or invalid (entailment / non-entailment). b. If the argument is invalid (a case of non-entailment), determine an assignment of truth values (interpretation) to the propositional letters that would show the argument to be invalid (non-entailment).

Follows are the solution to the given question:

Explanation:

Please find the correct question in the attached file.

2.

Build a real tree with the premises and reject the end.

The statement is INVALID because the tree is not shut down (because a branch is open)

3.

From the given model:

answer; ///i believe the correct answer is the empire state building;

the correct answer is the letter a

bright white has the greatest comparative advantage as it produces more than double the amount of small tubes than large in an hour.

sparkling comes next as it produces exactly double the amount which is to be expected

fresh comes in third because it only produces 50 more small tubes than large.

the company that shows the least comparative advantage is mmmint as it produces the same amount of small and large tubes.