If it is true that...

The intellect invents the notion of species and attributes it to itself

and

The universality of the form does not arise from the existence the form has in the intellect but rather from its relation to things as a likeness of such things

Then it must be true that...

Human nature, considered absolutely, is properly predicated of Socrates

If it is true that...

Human nature has in the intellect existence abstracted from all individuals

and

The intellect invents the notion of species and attributes it to itself

Then it must be true that...

The universality of the form does not arise from the existence the form has in the intellect but rather from its relation to things as a likeness of such things