(5steps total)
PrintForm
Definitions
DiscreteMath
Sections
DiscrMathExt
Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
prev
nat
pair
wf
prev_nat_pair
{
xy
:(
)|
xy
= <0,0>
}
By:
Def THEN Analyze THEN Analyze-1 THEN New:[
x
|
y
] Analyze1 THEN Reduce Concl
Generated subgoal:
1
1.
x
:
2.
y
:
3.
<
x
,
y
> = <0,0>
if
x
=
0
<
y
-1,0> else <
x
-1,
y
+1> fi
4
steps
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(5steps total)
PrintForm
Definitions
DiscreteMath
Sections
DiscrMathExt
Doc
prev_nat_pair 
{xy:(
)| 
xy = <0,0> }
prev_nat_pair {xy:()| xy = <0,0> }
<x,y> = <0,0>
if x=
0
<y-1,0> else <x-1,y+1> fi 
