Unfortunately, it is not, and many of its attempts at mathematical proofs have major flaws. You shouldn't trust its proofs unless you are already able to evaluate them--which I think is pretty much all the OP is saying.
Trust isn’t a binary, and I can trust things I don’t understand enough that I can use them. OP was talking about needing to understand, which is quite a bit above the level of being able to validate enough to use for a task.
