Determine whether the given argument is valid. For the valid argument, construct a formal proof. lature-of-Logic j. If you were attentive during the lecture, then you learn about the new lesson. You...

Determine whether the given argument is valid. For the valid argument, construct a formal proof.

Extracted text: lature-of-Logic j. If you were attentive during the lecture, then you learn about the new lesson. You did not learn the new lesson. Therefore, you were attentive during the lecture.