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.equality.equals_reversal
2	instantiation	3, 4, 5	⊢
	: , : , :
3	theorem		⊢
	proveit.core_expr_types.tuples.partition_back
4	instantiation	6, 7, 8	⊢
	:
5	instantiation	9, 10, 11, 12	⊢
	: , : , :
6	theorem		⊢
	proveit.numbers.number_sets.integers.nonneg_int_is_natural
7	instantiation	13, 33, 14	⊢
	: , :
8	instantiation	15, 16	⊢
	: , :
9	theorem		⊢
	proveit.numbers.addition.subtraction.subtract_from_add
10	instantiation	35, 18, 17	⊢
	: , : , :
11	instantiation	35, 18, 19	⊢
	: , : , :
12	theorem		⊢
	proveit.numbers.numerals.decimals.add_1_1
13	theorem		⊢
	proveit.numbers.addition.add_int_closure_bin
14	instantiation	20, 21, 22	⊢
	: , : , :
15	theorem		⊢
	proveit.numbers.addition.subtraction.nonneg_difference
16	instantiation	23, 37	⊢
	:
17	instantiation	35, 25, 24	⊢
	: , : , :
18	theorem		⊢
	proveit.numbers.number_sets.complex_numbers.real_within_complex
19	instantiation	35, 25, 26	⊢
	: , : , :
20	theorem		⊢
	proveit.logic.sets.inclusion.unfold_subset_eq
21	instantiation	27, 28	⊢
	: , :
22	instantiation	29, 30	⊢
	: , :
23	theorem		⊢
	proveit.numbers.number_sets.natural_numbers.natural_lower_bound
24	instantiation	35, 32, 31	⊢
	: , : , :
25	theorem		⊢
	proveit.numbers.number_sets.real_numbers.rational_within_real
26	instantiation	35, 32, 33	⊢
	: , : , :
27	theorem		⊢
	proveit.logic.sets.inclusion.relax_proper_subset
28	theorem		⊢
	proveit.numbers.number_sets.integers.zero_set_within_int
29	theorem		⊢
	proveit.logic.sets.enumeration.fold_singleton
30	theorem		⊢
	proveit.numbers.negation.negated_zero
31	instantiation	35, 36, 34	⊢
	: , : , :
32	theorem		⊢
	proveit.numbers.number_sets.rational_numbers.int_within_rational
33	instantiation	35, 36, 37	⊢
	: , : , :
34	theorem		⊢
	proveit.numbers.numerals.decimals.nat1
35	theorem		⊢
	proveit.logic.sets.inclusion.superset_membership_from_proper_subset
36	theorem		⊢
	proveit.numbers.number_sets.integers.nat_within_int
37	theorem		⊢
	proveit.numbers.numerals.decimals.nat2