Calc
Inductive()
Lemma
NewType()
Proof
QExists()
QForAll()
Struct()
axiom()
cond()
define()
prove()
search()
simp()
infer_sort()
KnuckleClosure
datatype()
eval_()
expr()
namedtuple_of_constructor()
nbe()
reflect()
reify()
sort_of_type()
type_of_sort()
x (object)
SortRef