Nuprl Lemma : mapcons_wf
2,24
postcript
pdf
A
,
B
:Type,
f
:(
A
(
A
List)
B
),
l
:
A
List. mapcons(
f
;
l
)
B
List
latex
Definitions
t
T
,
x
:
A
.
B
(
x
)
origin
A, B:Type, f:(A
(A List)B), l:A List. mapcons(f;l) 
B List A, B:Type, f:(A(A List)B), l:A List. mapcons(f;l) B List Tx:A. B(x)