Nuprl Lemma : l_exists_wf
11,40
postcript
pdf
T
:Type,
L
:(
T
List),
P
:(
T
prop{i:l}). l_exists(
L
;
T
;
x
.
P
(
x
))
prop{i:l}
latex
Definitions
P
Q
,
x
:
A
.
B
(
x
)
,
x
(
s
)
,
l_exists(
L
;
T
;
x
.
P
(
x
))
,
t
T
,
prop{i:l}
,
x
:
A
.
B
(
x
)
Lemmas
l
member
wf
origin
T:Type, L:(T List), P:(T
prop{i:l}). l_exists(L; T; x.P(x)) 
prop{i:l} T:Type, L:(T List), P:(Tprop{i:l}). l_exists(L; T; x.P(x)) prop{i:l} 
Q
x:A. B(x) Tx:A. B(x)