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, 3	,  ⊢
	: , :
1	theorem		⊢
	proveit.logic.equality.lhs_via_equality
2	generalization	4	,  ⊢
3	instantiation	14	⊢
	: , :
4	instantiation	5, 6	, ,  ⊢
	:
5	instantiation	11, 7, 8	⊢
	: , :
6	instantiation	9, 10	,  ⊢
	:
7	assumption		⊢
8	instantiation	14	⊢
	: , :
9	instantiation	11, 12, 13	⊢
	: , :
10	assumption		⊢
11	theorem		⊢
	proveit.logic.equality.rhs_via_equality
12	assumption		⊢
13	instantiation	14	⊢
	: , :
14	axiom		⊢
	proveit.logic.sets.inclusion.subset_eq_def