Well its a silly analogy because comparing a mathematical formula, with a religious "proof" are simply not in the same universe.
Math can be proven. Religious studies are related to culture, bias, upbringing, pre-concieved ideas, geography, and in the case of JW's, a very specific narrative. Its not apples and oranges, its comparing apples and Subarus.
Also....I recall the bible disagreeing with them?
2 Cor 13:5
James 1:3
1 Thes 5:21