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.logic.booleans.negation.negation_contradiction
2	assumption		⊢
3	instantiation	4, 5, 6	,  ⊢
	: , :
4	theorem		⊢
	proveit.logic.booleans.disjunction.neither_intro
5	assumption		⊢
6	assumption		⊢