Here is another interesting argument:

(p1) A and (A implies B), therefore B;

(p2) B and (B implies A), therefore A;

(C) Therefore, A and B.

I'll give a straightforward application of it:

(p1) God exists and the fact that God exists implies that the Bible speaks the truth, therefore the Bible speaks the truth;

(p2) The Bible speaks the truth and the fact that the Bible speaks the truth implies that God exists, therefore God exists;

(C) Therefore, God exists and the Bible speaks the truth.

It's seriously more complicated than usual, so please take all the time you need to answer the two questions.

Question 1: Do you think that this argument is logically valid, and why?

Question 2: Do you think that this argument is fallacious, and if so, what kind of fallacy is it?

EB