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.numbers.number_sets.integers.nonpos_int_is_int_nonpos
2	instantiation	4, 28, 26	⊢
	: , :
3	instantiation	5, 17, 16, 19, 6, 7*, 8*	⊢
	: , : , :
4	theorem		⊢
	proveit.numbers.addition.add_int_closure_bin
5	theorem		⊢
	proveit.numbers.addition.weak_bound_via_left_term_bound
6	instantiation	9, 37	⊢
	:
7	instantiation	10, 11, 12	⊢
	: , :
8	instantiation	13, 14, 15	⊢
	: , :
9	theorem		⊢
	proveit.numbers.number_sets.natural_numbers.natural_pos_lower_bound
10	theorem		⊢
	proveit.numbers.addition.commutation
11	instantiation	35, 18, 16	⊢
	: , : , :
12	instantiation	35, 18, 17	⊢
	: , : , :
13	theorem		⊢
	proveit.numbers.addition.subtraction.add_cancel_basic
14	instantiation	35, 18, 19	⊢
	: , : , :
15	instantiation	20	⊢
	:
16	instantiation	35, 22, 21	⊢
	: , : , :
17	instantiation	35, 22, 23	⊢
	: , : , :
18	theorem		⊢
	proveit.numbers.number_sets.complex_numbers.real_within_complex
19	instantiation	24, 25, 37	⊢
	: , : , :
20	axiom		⊢
	proveit.logic.equality.equals_reflexivity
21	instantiation	35, 27, 26	⊢
	: , : , :
22	theorem		⊢
	proveit.numbers.number_sets.real_numbers.rational_within_real
23	instantiation	35, 27, 28	⊢
	: , : , :
24	theorem		⊢
	proveit.logic.sets.inclusion.unfold_subset_eq
25	instantiation	29, 30	⊢
	: , :
26	instantiation	35, 31, 32	⊢
	: , : , :
27	theorem		⊢
	proveit.numbers.number_sets.rational_numbers.int_within_rational
28	instantiation	33, 34	⊢
	:
29	theorem		⊢
	proveit.logic.sets.inclusion.relax_proper_subset
30	theorem		⊢
	proveit.numbers.number_sets.real_numbers.nat_pos_within_real
31	theorem		⊢
	proveit.numbers.number_sets.integers.nat_within_int
32	theorem		⊢
	proveit.numbers.numerals.decimals.nat1
33	theorem		⊢
	proveit.numbers.negation.int_closure
34	instantiation	35, 36, 37	⊢
	: , : , :
35	theorem		⊢
	proveit.logic.sets.inclusion.superset_membership_from_proper_subset
36	theorem		⊢
	proveit.numbers.number_sets.integers.nat_pos_within_int
37	assumption		⊢
*equality replacement requirements