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 Conditional, ExprTuple, Function, Lambda, U, Variable, s, t
from proveit.logic import And, Forall, InSet
from proveit.physics.quantum import normalized_var_ket_u, var_ket_u
from proveit.physics.quantum.QPE import phase, s_ket_domain
# build up the expression from sub-expressions
expr = ExprTuple(Lambda(var_ket_u, Conditional(Forall(instance_param_or_params = [phase], instance_expr = Function(Variable("_b", latex_format = r"{_{-}b}"), [s, t, U, var_ket_u, phase])), And(InSet(var_ket_u, s_ket_domain), normalized_var_ket_u))))
# 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()