Calc
Inductive()
Lemma
NewType()
Proof
QExists()
QForAll()
Struct()
axiom()
cond()
define()
prove()
search()
simp()
Cons()
List()
Nil()
Unit()
list()
Helper to construct Cons values >>> Cons(1, Nil(smt.IntSort())) Cons(1, Nil)
x (ExprRef)
xs (DatatypeRef)
DatatypeRef