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Show the Proof

In [1]:
import proveit
# Automation is not needed when only showing a stored proof:
proveit.defaults.automation = False # This will speed things up.
proveit.defaults.inline_pngs = False # Makes files smaller.
%show_proof
Out[1]:
 step typerequirementsstatement
0generalization1  ⊢  
1instantiation2, 3  ⊢  
  : , :
2theorem  ⊢  
 proveit.logic.equality.fold_not_equals
3instantiation4, 5, 6  ⊢  
  :
4axiom  ⊢  
 proveit.logic.booleans.implication.denial_via_contradiction
5instantiation7  ⊢  
  : , :
6deduction8  ⊢  
7axiom  ⊢  
 proveit.logic.equality.equality_in_bool
8modus ponens9, 10,  ⊢  
9assumption  ⊢  
10instantiation11, 12  ⊢  
  :
11axiom  ⊢  
 proveit.logic.booleans.eq_true_elim
12assumption  ⊢