When is a Religious Belief Delusional?

[Neo-Scholastic]

I don't care if you reject the notion of objects of intellect. To me that is a matter of opinion and cause for debate. What I really want to know is if you think people who believe in mathematical objects are delusional.

What do you mean by a mathematical object? That's a term of art, and it's not clear what your question is.

I say that triangularity would exist in potential even if the physical universe had never come into being to manifest objects that sentient organisms would recognize as triangular. Is my belief in triangularity wrong or delusional?