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	axiom		⊢
	proveit.logic.equality.equals_transitivity
2	instantiation	4, 5	⊢
	: , : , :
3	instantiation	6, 7	⊢
	:
4	axiom		⊢
	proveit.logic.equality.substitution
5	instantiation	8, 9, 10	⊢
	: , : , :
6	axiom		⊢
	proveit.logic.booleans.eq_true_intro
7	assumption		⊢
8	theorem		⊢
	proveit.logic.equality.sub_right_side_into
9	theorem		⊢
	proveit.numbers.numerals.decimals.add_3_1
10	instantiation	11, 12, 13	⊢
	: , :
11	theorem		⊢
	proveit.numbers.addition.commutation
12	instantiation	24, 15, 14	⊢
	: , : , :
13	instantiation	24, 15, 16	⊢
	: , : , :
14	instantiation	24, 18, 17	⊢
	: , : , :
15	theorem		⊢
	proveit.numbers.number_sets.complex_numbers.real_within_complex
16	instantiation	24, 18, 19	⊢
	: , : , :
17	instantiation	24, 21, 20	⊢
	: , : , :
18	theorem		⊢
	proveit.numbers.number_sets.real_numbers.rational_within_real
19	instantiation	24, 21, 22	⊢
	: , : , :
20	instantiation	24, 25, 23	⊢
	: , : , :
21	theorem		⊢
	proveit.numbers.number_sets.rational_numbers.int_within_rational
22	instantiation	24, 25, 26	⊢
	: , : , :
23	theorem		⊢
	proveit.numbers.numerals.decimals.nat3
24	theorem		⊢
	proveit.logic.sets.inclusion.superset_membership_from_proper_subset
25	theorem		⊢
	proveit.numbers.number_sets.integers.nat_within_int
26	theorem		⊢
	proveit.numbers.numerals.decimals.nat1