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In [1]:
import proveit
theory = proveit.Theory() # the theorem's theory
from proveit.logic import TRUE, FALSE
In [2]:
%proving false_implies_true
With these allowed/disallowed theorem/theory presumptions (e.g., to avoid circular dependencies), we begin our proof of
false_implies_true:
(see dependencies)
false_implies_true may now be readily provable (assuming required theorems are usable).  Simply execute "%qed".
In [3]:
TRUE.prove().as_implication(FALSE)
In [4]:
%qed
proveit.logic.booleans.implication.false_implies_true has been proven.
Out[4]:
 step typerequirementsstatement
0deduction1  ⊢  
1axiom  ⊢  
 proveit.logic.booleans.true_axiom