Nuprl Lemma : l_disjoint-symmetry
11,40
postcript
pdf
T
:Type,
a
,
b
:(
T
List). l_disjoint(
T
;
b
;
a
)
l_disjoint(
T
;
a
;
b
)
latex
Definitions
P
&
Q
,
False
,
P
Q
,
A
,
t
T
,
x
:
A
.
B
(
x
)
,
(
x
l
)
,
,
l_disjoint(
T
;
l1
;
l2
)
,
P
Q
,
P
Q
Lemmas
l
disjoint
wf
,
l
member
wf
origin
T:Type, a, b:(T List). l_disjoint(T;b;a) 
l_disjoint(T;a;b) T:Type, a, b:(T List). l_disjoint(T;b;a) l_disjoint(T;a;b) Q
A
Tx:A. B(x) l)
Q Q