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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, 4,  ⊢  
  :
2axiom  ⊢  
 proveit.logic.booleans.implication.affirmation_via_contradiction
3assumption  ⊢  
4deduction5  ⊢  
5instantiation6, 7, 8,  ⊢  
  : , :
6theorem  ⊢  
 proveit.logic.equality.not_equals_contradiction
7instantiation9, 10  ⊢  
  :
8assumption  ⊢  
9axiom  ⊢  
 proveit.logic.booleans.negation.negation_elim
10assumption  ⊢