Proof of proveit.trigonometry.real_closure theorem

import proveit
theory = proveit.Theory() # the theorem's theory

%proving real_closure

With these allowed/disallowed theorem/theory presumptions (e.g., to avoid circular dependencies), we begin our proof of
real_closure:
(see dependencies)

real_closure may now be readily provable (assuming required theorems are usable).  Simply execute "%qed".