Full Idea
Structural Realists must show that it is the mathematical aspects of the theories, not their content, that account for their success ….and that their structure and content can be clearly separated.
Gist of Idea
Structural Realists must show the mathematics is both crucial and separate
Source
Geoffrey Gorham (Philosophy of Science [2009], 4)
Book Reference
Gorham,Geoffrey: 'Philosophy of Science' [One World 2009], p.102
A Reaction
Their approach certainly seems to rely on mathematical types of science, so it presumably fits biology, geology and even astronomy less well.
Related Idea
Idea 22194 Structural Realism says mathematical structures persist after theory rejection [Gorham]