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	reference	21	⊢
2	instantiation	4, 5	⊢
	: , : , :
3	instantiation	16, 6	⊢
	: , : , :
4	theorem		⊢
	proveit.logic.sets.subtraction.nonmembership_folding
5	instantiation	7, 8, 9	⊢
	: , :
6	instantiation	10, 11	⊢
	: , :
7	theorem		⊢
	proveit.logic.booleans.disjunction.or_if_only_right
8	instantiation	12, 13	⊢
	: , :
9	instantiation	18, 40, 14, 15	⊢
	: , : , : , : , :
10	theorem		⊢
	proveit.logic.equality.equals_reversal
11	instantiation	16, 17	⊢
	: , : , :
12	theorem		⊢
	proveit.logic.sets.membership.double_negated_membership
13	instantiation	18, 37, 19, 20	⊢
	: , : , : , : , :
14	axiom		⊢
	proveit.numbers.number_sets.natural_numbers.zero_in_nats
15	theorem		⊢
	proveit.core_expr_types.tuples.tuple_len_0_typical_eq
16	axiom		⊢
	proveit.logic.equality.substitution
17	instantiation	21, 22, 23	⊢
	: , : , :
18	theorem		⊢
	proveit.logic.sets.enumeration.in_enumerated_set
19	instantiation	24	⊢
	: , :
20	instantiation	24	⊢
	: , :
21	theorem		⊢
	proveit.logic.equality.sub_right_side_into
22	theorem		⊢
	proveit.numbers.numerals.decimals.add_2_1
23	instantiation	25, 26, 27	⊢
	: , :
24	theorem		⊢
	proveit.numbers.numerals.decimals.tuple_len_2_typical_eq
25	theorem		⊢
	proveit.numbers.addition.commutation
26	instantiation	38, 29, 28	⊢
	: , : , :
27	instantiation	38, 29, 30	⊢
	: , : , :
28	instantiation	38, 32, 31	⊢
	: , : , :
29	theorem		⊢
	proveit.numbers.number_sets.complex_numbers.real_within_complex
30	instantiation	38, 32, 33	⊢
	: , : , :
31	instantiation	38, 35, 34	⊢
	: , : , :
32	theorem		⊢
	proveit.numbers.number_sets.real_numbers.rational_within_real
33	instantiation	38, 35, 36	⊢
	: , : , :
34	instantiation	38, 39, 37	⊢
	: , : , :
35	theorem		⊢
	proveit.numbers.number_sets.rational_numbers.int_within_rational
36	instantiation	38, 39, 40	⊢
	: , : , :
37	theorem		⊢
	proveit.numbers.numerals.decimals.nat2
38	theorem		⊢
	proveit.logic.sets.inclusion.superset_membership_from_proper_subset
39	theorem		⊢
	proveit.numbers.number_sets.integers.nat_within_int
40	theorem		⊢
	proveit.numbers.numerals.decimals.nat1