Nuprl Lemma : select-map
0,22
postcript
pdf
f
:Top,
T
:Type,
L
:
T
List,
i
:
||
L
||. map(
f
;
L
)[
i
] ~ (
f
(
L
[
i
]))
latex
Definitions
t
T
,
x
:
A
.
B
(
x
)
,
||
as
||
,
{
i
..
j
}
,
Top
,
P
Q
,
False
,
A
,
P
&
Q
,
A
B
,
i
j
<
k
,
hd(
l
)
,
i
<
j
,
i
j
,
l
[
i
]
,
{
T
}
,
SQType(
T
)
,
Prop
,
P
Q
,
Dec(
P
)
,
True
,
b
,
b
,
,
T
,
P
Q
,
P
Q
,
Unit
,
tl(
l
)
Lemmas
eqtt
to
assert
,
assert
of
le
int
,
iff
transitivity
,
eqff
to
assert
,
squash
wf
,
true
wf
,
bnot
of
le
int
,
assert
of
lt
int
,
le
int
wf
,
bool
wf
,
le
wf
,
lt
int
wf
,
assert
wf
,
bnot
wf
,
decidable
int
equal
,
top
wf
,
int
seg
wf
,
length
wf1
origin