Proof of proveit.numbers.negation.double_negation theorem

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

%proving double_negation

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

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