Step of Proof: nth_tl_append
11,40
postcript
pdf
Inference at
*
2
I
of proof for Lemma
nth
tl
append
:
1.
T
: Type
2.
T
List
3.
u
:
T
4.
v
:
T
List
5.
bs
:(
T
List). nth_tl(||
v
||;
v
@
bs
) ~
bs
bs
:(
T
List). nth_tl(||
v
||+1;[
u
/ (
v
@
bs
)]) ~
bs
latex
by ParallelLast
latex
1
:
1:
5.
bs
:
T
List
1:
6. nth_tl(||
v
||;
v
@
bs
) ~
bs
1:
nth_tl(||
v
||+1;[
u
/ (
v
@
bs
)]) ~
bs
.
Definitions
t
T
,
n
+
m
,
#$n
,
[
car
/
cdr
]
,
nth_tl(
n
;
as
)
,
||
as
||
,
as
@
bs
,
x
:
A
.
B
(
x
)
,
x
:
A
B
(
x
)
,
type
List
,
s
~
t
,
Type
origin