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	⊢
	: , : , : , : , : , :
1	theorem		⊢
	proveit.logic.booleans.disjunction.disassociation
2	reference	10	⊢
3	reference	17	⊢
4	reference	19	⊢
5	instantiation	11, 17, 10, 19, 14	⊢
	: , : , : , : , :
6	instantiation	16, 18, 17, 20, 9, 21	⊢
	: , : , : , : , :
7	instantiation	16, 10, 21	⊢
	: , : , : , : , :
8	instantiation	11, 12, 18, 13, 20, 14	⊢
	: , : , : , : , :
9	instantiation	22	⊢
	: , :
10	theorem		⊢
	proveit.numbers.numerals.decimals.nat1
11	theorem		⊢
	proveit.logic.booleans.disjunction.each_is_bool
12	theorem		⊢
	proveit.numbers.numerals.decimals.nat3
13	instantiation	15	⊢
	: , : , :
14	instantiation	16, 17, 18, 19, 20, 21	⊢
	: , : , : , : , :
15	theorem		⊢
	proveit.numbers.numerals.decimals.tuple_len_3_typical_eq
16	theorem		⊢
	proveit.logic.booleans.conjunction.each_is_bool
17	theorem		⊢
	proveit.numbers.numerals.decimals.nat2
18	axiom		⊢
	proveit.numbers.number_sets.natural_numbers.zero_in_nats
19	instantiation	22	⊢
	: , :
20	theorem		⊢
	proveit.core_expr_types.tuples.tuple_len_0_typical_eq
21	instantiation	23, 24	⊢
	:
22	theorem		⊢
	proveit.numbers.numerals.decimals.tuple_len_2_typical_eq
23	theorem		⊢
	proveit.logic.booleans.in_bool_if_true
24	assumption		⊢