Isolating a human is analogous to removing oxygen. Few would argue that someone brain dead could create anything.
My comparison is based on sciencse vs. fiction. 1+1 = 2 is a reality which works in german, africa, usa and everywhere else. There might be a difference on how those symbols (1, 2...) look like but the axiom is true and valid and is discoverable.
In religion its not.
Concept of god exists but it looks different depending on your believe. Multiply gods, one god, good god, bad god...
Even the stuff written down is based on someone who wrote it down and still people interpretate it totally different.
Never seen someone implying they are right that 1+1=3 if the interpretation of 3 is not 'next after one'.
That said, the Peano axioms seem less nebulous that the varying axioms relating to the existence of god, as that concept can change so much from person to person.