Nuprl Lemma : es-interface-left_wf
11,40
postcript
pdf
A
,
B
:Type,
es
:ES,
X
:AbsInterface(
A
+
B
). es-interface-left(
X
)
AbsInterface(
A
)
latex
Definitions
AbsInterface(
A
)
,
es-interface-left(
X
)
,
f
o
g
,
x
.
A
(
x
)
,
S
T
,
x
:
A
.
B
(
x
)
,
Void
,
x
:
A
B
(
x
)
,
E
,
x
:
A
.
B
(
x
)
,
left
+
right
,
Top
,
ES
,
t
T
,
Type
Lemmas
event
system
wf
,
top
wf
,
es-E
wf
,
p-compose
wf
origin
A, B:Type, es:ES, X:AbsInterface(A + B). es-interface-left(X) 
AbsInterface(A) A, B:Type, es:ES, X:AbsInterface(A + B). es-interface-left(X) AbsInterface(A) 
x.A(x)
T
x:A.B(x)
B(x)x:A. B(x) T