Determine whether statement (3) follows from statements (1) and (2) by the Law of Detachment or the Law of Syllogism. If it does, state which law was used. If it does not, write invalid.

(1) If you use a pencil you can erase mistakes.
(2) If you can erase mistakes your paper will be neater.
(3) If you use a pencil your paper will be neater.
Question 15 options:

invalid

yes; Law of Detachment

yes; Law of Syllogism