importproveittheory=proveit.Theory()# the theorem's theory
In [2]:
%proving nonpos_if_in_nonpos_int
With these allowed/disallowed theorem/theory presumptions (e.g., to avoid circular dependencies), we begin our proof of nonpos_if_in_nonpos_int: (see dependencies)
nonpos_if_in_nonpos_int may now be readily provable (assuming required theorems are usable). Simply execute "%qed".