Calc
FreshVar()
FreshVars()
Inductive()
Lemma()
NewType()
PTheorem()
Proof
QExists()
QForAll()
QImplies()
Struct()
Theorem()
axiom()
cond()
define()
prove()
search()
simp()
Cons()
Head()
Nil()
Seq()
Tail()
Unit()
induct()
induct_list()
seq()
s (SortRef)