(7steps total)
PrintForm
Definitions
list
1
Sections
StandardLIB
Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
length
firstn
A
:Type,
as
:
A
List,
n
:{0...||
as
||}. ||firstn(
n
;
as
)|| =
n
By:
(CDToVarThen `
as
' ListInd) THEN (Analyze 0)
Generated subgoals:
1
1.
A
: Type
2.
A
List
3.
n
: {0...||nil||}
||firstn(
n
;nil)|| =
n
3
steps
2
1.
A
: Type
2.
A
List
3.
u
:
A
4.
v
:
A
List
5.
n
:{0...||
v
||}. ||firstn(
n
;
v
)|| =
n
6.
n
: {0...||
u
.
v
||}
||firstn(
n
;
u
.
v
)|| =
n
3
steps
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(7steps total)
PrintForm
Definitions
list
1
Sections
StandardLIB
Doc