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	generalization	1	⊢
1	instantiation	2, 3, 4, 5, 6, 7, 8, 9	, , , , , ,  ⊢
	: , : , : , :
2	theorem		⊢
	proveit.logic.booleans.disjunction.constructive_dilemma
3	instantiation	12, 10	⊢
	:
4	instantiation	12, 11	⊢
	:
5	instantiation	12, 14	⊢
	:
6	instantiation	12, 17	⊢
	:
7	assumption		⊢
8	instantiation	15, 13, 14	,  ⊢
	: , :
9	instantiation	15, 16, 17	,  ⊢
	: , :
10	assumption		⊢
11	assumption		⊢
12	theorem		⊢
	proveit.logic.booleans.negation.closure
13	assumption		⊢
14	assumption		⊢
15	theorem		⊢
	proveit.logic.booleans.implication.to_contraposition
16	assumption		⊢
17	assumption		⊢