[MD] What is SOM?

[Krimel]

DM: The thing I wouldsay in support of metaphysical pluralism is
that it suggests that it is all real, all levels of SQ are as real as any 
other,
it rejects any formof essentialism. There is just energy and its many forms,
Aristotle said that -often mistranslated as matter and form. 

[Krimel]
So how would that apply to mathematics which seems to be nothing if not
essentialistic?