Show the Proof

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

	step type	requirements	statement
0	instantiation	1, 2	, ,  ⊢
	: , :
1	theorem		⊢
	proveit.logic.sets.equivalence.set_equiv_fold
2	generalization	3	, ,  ⊢
3	instantiation	4, 5	, ,  ⊢
	: , :
4	theorem		⊢
	proveit.logic.equality.equals_reversal
5	instantiation	13, 6	, ,  ⊢
	: , : , :
6	instantiation	7, 8, 9, 10	, ,  ⊢
	: , : , : , :
7	theorem		⊢
	proveit.logic.equality.four_chain_transitivity
8	instantiation	13, 11	⊢
	: , : , :
9	instantiation	13, 12	⊢
	: , : , :
10	instantiation	13, 14	⊢
	: , : , :
11	assumption		⊢
12	assumption		⊢
13	axiom		⊢
	proveit.logic.equality.substitution
14	assumption		⊢