Nuprl Lemma : rcv?_wf
0,22
postcript
pdf
E
,
X1
,
X2
:Type,
info
:(
E
(Id
X1
+(IdLnk
E
)
X2
)),
e
:
E
. rcv?(
e
)
latex
Definitions
rcv?(
e
)
,
ecase1(
e
;
info
;
i
.
f
(
i
);
l
,
e'
.
g
(
l
;
e'
))
,
x
.
t
(
x
)
,
x
:
A
.
B
(
x
)
,
x
,
y
.
t
(
x
;
y
)
,
,
false
,
true
,
Id
,
IdLnk
,
t
T
Lemmas
IdLnk
wf
,
Id
wf
,
btrue
wf
,
bfalse
wf
,
bool
wf
,
ecase1
wf
origin
E, X1, X2:Type, info:(E
(Id
X1+(IdLnkE)X2)), e:E. rcv?(e) 
E, X1, X2:Type, info:(E(IdX1+(IdLnkE)X2)), e:E. rcv?(e) 
x. t(x)x:A. B(x)x,y. t(x;y) T