This theme has been extensively discussed on RG before, cf. Derek Abbott's question at 

https://www.researchgate.net/post/Is_mathematics_a_human_contrivance_or_is_it_innate_to_nature ,

which was viewed 48K+ times, was independently quoted in the press, and drew over 6K answers

This theme has been extensively discussed on RG before, cf. Derek Abbott's question at 

https://www.researchgate.net/post/Is_mathematics_a_human_contrivance_or_is_it_innate_to_nature ,

which was viewed 48K+ times, was independently quoted in the press, and drew over 6K answers

Although this question has already been asked, it is worthwhile to reconsider it.

The short answer is: Both.

I should have phrased the question differently. I am new to RG and should have asked if this question had been asked previously and where could I find the discussion that ensued. I do thank you all for your answers and pointing me in the right direction.

You can not invent yourself, Ales.

And how about first insect, Zbigniew? Smile.

Zbigniew,

Math is language. About what are birds speaking?

Question about polyhedra. If not distinguished then don't exist?

Example with pendulums is very good, Zbigniew. Of course, all what we see can emerge from chaos. This means, that chaos contains visual reality, and does not mean, that visual reality (also polyhedra) does not exist.

There is purely technical problem in Math: to recieve true chaos. How can You distinguish it from periodicity with very large period?

P.S. In the case of primes this problem is not solved till now.