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, 4, 5, 6, 7, 8, 9, 10, 11, 12	, , , , , ,  ⊢
	: , : , : , : , : , : , :
1	theorem		⊢
	proveit.numbers.addition.leftward_commutation
2	theorem		⊢
	proveit.numbers.numerals.decimals.nat2
3	instantiation	13	⊢
	: , :
4	instantiation	13	⊢
	: , :
5	instantiation	13	⊢
	: , :
6	instantiation	20, 21, 14	⊢
	: , : , :
7	instantiation	20, 21, 15	⊢
	: , : , :
8	instantiation	20, 21, 16	⊢
	: , : , :
9	instantiation	20, 21, 17	⊢
	: , : , :
10	instantiation	20, 21, 18	⊢
	: , : , :
11	instantiation	20, 21, 19	⊢
	: , : , :
12	instantiation	20, 21, 22	⊢
	: , : , :
13	theorem		⊢
	proveit.numbers.numerals.decimals.tuple_len_2_typical_eq
14	assumption		⊢
15	assumption		⊢
16	assumption		⊢
17	assumption		⊢
18	assumption		⊢
19	assumption		⊢
20	theorem		⊢
	proveit.logic.sets.inclusion.superset_membership_from_proper_subset
21	theorem		⊢
	proveit.numbers.number_sets.complex_numbers.real_within_complex
22	assumption		⊢