terms
N
cons
recip
sqr
N
n__terms
s
N
sqr
0
0
sqr
s
X
s
add
sqr
X
dbl
X
dbl
0
0
dbl
s
X
s
s
dbl
X
add
0
X
X
add
s
X
Y
s
add
X
Y
first
0
X
nil
first
s
X
cons
Y
Z
cons
Y
n__first
X
activate
Z
half
0
0
half
s
0
0
half
s
s
X
s
half
X
half
dbl
X
X
terms
X
n__terms
X
first
X1
X2
n__first
X1
X2
activate
n__terms
X
terms
X
activate
n__first
X1
X2
first
X1
X2
activate
X
X
2.2
half
s
s
X
half
X
activate
n__terms
X
terms
X
sqr
s
X
dbl
X
sqr
s
X
add
sqr
X
dbl
X
terms
N
sqr
N
activate
n__first
X1
X2
first
X1
X2
add
s
X
Y
add
X
Y
first
s
X
cons
Y
Z
activate
Z
sqr
s
X
sqr
X
dbl
s
X
dbl
X
true
first
s
X
cons
Y
Z
activate
Z
activate
n__first
X1
X2
first
X1
X2
true
s
1
1
n__first
2
1
2
1
recip
1
0
activate
1
0
dbl
1
0
dbl
1
0
terms
1
0
activate
1
1
0
half
1
0
half
1
0
sqr
1
0
0
0
0
first
2
1
2
0
nil
0
0
first
2
0
n__terms
1
0
cons
2
2
28958
add
2
0
add
2
0
sqr
1
0
terms
1
0
activate
n__terms
X
terms
X
false
terms
N
sqr
N
false
sqr
s
X
sqr
X
true
s
1
1
1
n__first
2
1
recip
1
0
activate
1
0
dbl
1
0
dbl
1
0
terms
1
0
activate
1
0
half
1
0
half
1
0
sqr
1
1
0
0
0
0
first
2
0
nil
0
0
first
2
0
n__terms
1
0
cons
2
28958
add
2
0
add
2
0
sqr
1
0
terms
1
0
sqr
s
X
dbl
X
false
dbl
s
X
dbl
X
true
s
1
1
1
n__first
2
1
recip
1
0
activate
1
0
dbl
1
0
dbl
1
1
0
terms
1
0
activate
1
0
half
1
0
half
1
0
sqr
1
0
0
0
0
first
2
0
nil
0
0
first
2
0
n__terms
1
0
cons
2
28958
add
2
0
add
2
0
sqr
1
0
terms
1
0
sqr
s
X
add
sqr
X
dbl
X
false
add
s
X
Y
add
X
Y
true
s
1
1
1
n__first
2
1
recip
1
0
activate
1
0
dbl
1
0
dbl
1
0
terms
1
0
activate
1
0
half
1
0
half
1
0
sqr
1
0
0
0
0
first
2
0
nil
0
0
first
2
0
n__terms
1
0
cons
2
28958
add
2
1
0
add
2
0
sqr
1
0
terms
1
0
half
s
s
X
half
X
true
s
1
1
1
n__first
2
1
recip
1
0
activate
1
0
dbl
1
0
dbl
1
0
terms
1
0
activate
1
0
half
1
1
0
half
1
0
sqr
1
0
0
0
0
first
2
0
nil
0
0
first
2
0
n__terms
1
0
cons
2
28958
add
2
0
add
2
0
sqr
1
0
terms
1
0
NaTT
certifiable-1.6