app
lam
%X
a
F
%X
Y
F
Y
lam
%Y
a
app
U
%Y
U
rec
zero
V
%Z
Nat
I
%Z
V
rec
succ
P
X1
%U
Nat
Z1
%U
Z1
P
rec
P
X1
%V
Nat
Z1
%V
F
a
b
Y
a
U
arrab
V
a
I
Nat
a
a
P
Nat
X1
a
Z1
Nat
a
a
app
arrab
a
b
lam
a
b
arrab
rec
Nat
a
Nat
a
a
a
succ
Nat
Nat
zero
Nat
FULL
tmptmptmp.afsm