Nuprl Lemma : map_append
11,40
postcript
pdf
A
,
B
:Type,
f
:(
A
B
),
as
,
as'
:(
A
List). map(
f
;
as
@
as'
) = (map(
f
;
as
) @ map(
f
;
as'
))
(
B
List)
latex
Definitions
t
T
,
x
:
A
.
B
(
x
)
,
Y
,
as
@
bs
,
map(
f
;
as
)
,
Lemmas
map
wf
origin
A, B:Type, f:(A
B), as, as':(A List). map(f;as @ as') = (map(f;as) @ map(f;as')) 
(B List) A, B:Type, f:(AB), as, as':(A List). map(f;as @ as') = (map(f;as) @ map(f;as')) (B List) Tx:A. B(x)