Deletion of Square root of 5

Comment:  in the context of AfD is not about actual citations in a Wikipedia article. It is about the likelihood that  material is available from which to develop the Wikipedia article. Of course the Square root of 5 is going to be addressed in multiple math books. That alone is enough to meet  even if the article itself was unreferenced. There are practicable application for the Square root of 5 noted in 's and that material is available for the article as well. I too consider this a very weak nomination, which would justify an early close
Stance: keep
Cited policy: Wikipedia:Reliable sources (WP:RS||WP:NOTE||WP:RS)