Nuprl Lemma : interface_wf
11,40
postcript
pdf
ds
:(Id
Type),
da
:(Id
Knd
Type),
A
:Type. Interface(
ds
;
da
;
A
)
Type
latex
Definitions
x
:
A
B
(
x
)
,
type
List
,
(
x
l
)
,
LocKnd
,
let
i
,
k
:LocKnd =
ik
in
P
(
i
;
k
)
,
x
,
y
.
t
(
x
;
y
)
,
f
(
a
)
,
left
+
right
,
Top
,
{
x
:
A
|
B
(
x
)}
,
b
,
hasloc(
k
;
i
)
,
x
:
A
.
B
(
x
)
,
Knd
,
x
:
A
B
(
x
)
,
Id
,
t
T
,
Type
Lemmas
Id
wf
,
Knd
wf
,
hasloc
wf
,
assert
wf
,
top
wf
,
locknd-spread
wf2
,
LocKnd
wf
,
l
member
wf
origin
ds:(Id
Type), da:(IdKndType), A:Type. Interface(ds;da;A) 
Type ds:(IdType), da:(IdKndType), A:Type. Interface(ds;da;A) Type 
B(x) l)
x,y. t(x;y)
bx:A. B(x)B(x) T