Nuprl Lemma : list_update_wf
0,22
postcript
pdf
T
:Type,
l
:
T
List,
i
:
,
x
:
T
.
l
[
i
:=
x
]
T
List
latex
Definitions
t
T
,
x
:
A
.
B
(
x
)
,
||
as
||
,
{
i
..
j
}
,
i
j
,
P
Q
,
False
,
A
,
A
B
,
,
l
[
i
]
,
i
=
j
,
if
b
t
else
f
fi
,
mklist(
n
;
f
)
,
f
[
x
:=
v
]
,
l
[
i
:=
x
]
Lemmas
mklist
wf
,
ifthenelse
wf
,
eq
int
wf
,
select
wf
,
int
seg
wf
,
non
neg
length
,
length
wf1
origin
T:Type, l:T List, i:
, x:T. l[i:=x] 
T List T:Type, l:T List, i:, x:T. l[i:=x] T List Tx:A. B(x)
}
j
Q
A
B
j
t else f fi