Baggett's and Wall's Proposed IBE Criteria

In an earlier post, I attempted to steelman the abductive moral argument set forth by David Baggett and Jerry Walls (hereafter, "B&W") in their book God and Cosmos. In this post, I want to pick up where that post left off and turn to my second question for evaluating the schema of B&W's schema for their abductive moral argument. Recall that my second question was as follows:

Are the proposed criteria for explanation candidates meaningful, unambiguous, and justified?

Baggett and Walls on 'The' Moral Argument vs. 'The' Argument from Evil

David Baggett	Jerry Walls

The idea that there is some sort of connection between moral arguments for theism, on the one hand and arguments from evil against theism, on the other hand, is not new. In this blog post, I want to comment on a very cryptic statement made by Baggett and Walls about this connection. In their book God and Cosmos, they write:

... Second, it should be said in such a case that the probability of theism has increased (by much or a little) relative to morality; in theory the probability of atheism could increase or decrease relative to other phenomena. (However, the success of the moral argument would decisively undercut the problem of evil, which tends to be counted as the best evidence against theism.) (20, boldface mine)

Steelmanning the Abductive Moral Argument of David Baggett and Jerry Walls

Chad of the blog "Truthbomb Apologetics" recently tweeted about the abductive, cumulative moral argument for God's existence set forth by Christian philosophers David Baggett and Jerry Walls in their book God and Cosmos.

Baggett/Walls: A Four-Fold Abductive Cumulative Argument

1. Moral facts, moral knowledge, moral transformation, and moral rationality require robust explanation.

2. The best explanation of these phenomena is God.

3. Therefore, God (probably) exists. @moralapologetic

— Chad (@TBapologetics) January 21, 2022

As someone with great interest in metaethics and moral arguments for theism, this book had been on my "to buy" list for sometime. I decided to pick up a copy on Kindle. 

With the disclaimer that I haven't finished reading the book yet, the first thing I did after downloading the Kindle version of the book was to scan the book for a schema or other formal representation of the logical structure of their argument in premise and conclusion form. I didn't find one. So I decided to try to "reverse engineer" the schema for their argument as I read through the book.