Nuprl Lemma : p-first_wf-interface
11,40
postcript
pdf
es
:ES,
A
:Type,
Ias
:(AbsInterface(
A
) List). p-first(
Ias
)
AbsInterface(
A
)
latex
Definitions
ES
,
t
T
,
Type
,
Top
,
left
+
right
,
x
:
A
.
B
(
x
)
,
E
,
x
:
A
B
(
x
)
,
type
List
,
p-first(
L
)
,
AbsInterface(
A
)
Lemmas
p-first
wf
,
es-E
wf
,
top
wf
,
event
system
wf
origin
es:ES, A:Type, Ias:(AbsInterface(A) List). p-first(Ias) 
AbsInterface(A) es:ES, A:Type, Ias:(AbsInterface(A) List). p-first(Ias) AbsInterface(A) Tx:A. B(x)
B(x)