Conversation so far:
What was Rem Koolhaas' Project on the City?
Rem Koolhaas' next landmark publications were a product of his position as Professor in Practice of Architecture and Urban Design at Harvard University.
What did Rem Koolhaas' Project on the City entail?
It involved  Rem Koolhaas' students analyzing what others would regard as non-cities,  which argue are highly functional despite lack of infrastructure.

Question: What do you mean by non-city?
Self-contained rewrite: What do you mean being regarded as non-cities?