Common Boolean of type BooleanSet

from the theory of proveit.logic.booleans

import proveit
# Automation is not needed when only building an expression:
proveit.defaults.automation = False # This will speed things up.
proveit.defaults.inline_pngs = False # Makes files smaller.
%load_expr # Load the stored expression as 'stored_expr'
# import the special expression
from proveit.logic import Boolean

# check that the built expression is the same as the stored expression
assert Boolean == stored_expr
assert Boolean._style_id == stored_expr._style_id
print("Passed sanity check: Boolean matches stored_expr")

Passed sanity check: Boolean matches stored_expr

# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())

\mathbb{B}

stored_expr.style_options()

no style options

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	Literal