Common expressions for the theory of proveit.logic.booleans

import proveit
# Prepare this notebook for defining the common expressions of a theory:
%common_expressions_notebook # Keep this at the top following 'import proveit'.
from proveit.logic import BooleanSet, TrueLiteral, FalseLiteral
%begin common

Defining common sub-expressions for theory 'proveit.logic.booleans'
Subsequent end-of-cell assignments will define common sub-expressions
%end_common will finalize the definitions

Boolean = BooleanSet()

Boolean:

TRUE, FALSE = TrueLiteral(), FalseLiteral()

TRUE:

FALSE:

%end common

These common expressions may now be imported from the theory package: proveit.logic.booleans