import proveit
# Automation is not needed when 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 Expression classes needed to build the expression
from proveit import theta
from proveit.logic import Forall, InSet
from proveit.numbers import IntervalCO, IntervalOO, Neg, one, pi, zero
from proveit.trigonometry import Sin
# build up the expression from sub-expressions
expr = Forall(instance_param_or_params = [theta], instance_expr = InSet(Sin(theta), IntervalCO(Neg(one), zero)), domain = IntervalOO(Neg(pi), zero))
# check that the built expression is the same as the stored expression
assert expr == stored_expr
assert expr._style_id == stored_expr._style_id
print("Passed sanity check: expr matches stored_expr")
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
stored_expr.style_options()
# display the expression information
stored_expr.expr_info()