If mathematical entities exist independent of minds then surely that solves the argument of whether maths is invented or discovered.
Yes but that does that mean the converse is true?
Even if we assert that mathematical entities do NOT exist apart from mind, what does that really entail? Does that settle everything? We still have a universe that appears to obey mathematical laws -- mind or no mind, observer or no observer.
The point I think that is important that you bring up, Math magician, is that cognitively, I think we have a great ability for generating symbols, which is entirely distinct from the concept itself.