(3steps total)
PrintForm
Definitions
num
thy
1
Sections
StandardLIB
Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
gcd
of
triple
a
,
b
,
c
,
x
,
y
:
.
GCD(
a
;
b
;
x
)
GCD(
x
;
c
;
y
)
y
|
a
&
y
|
b
&
y
|
c
& (
z
:
.
z
|
a
z
|
b
z
|
c
z
|
y
)
By:
(Unfold `gcd_p` 0 THEN UnivCD) THEN (Analyze 0)
Generated subgoals:
1
1.
a
:
2.
b
:
3.
c
:
4.
x
:
5.
y
:
6.
x
|
a
&
x
|
b
& (
z
:
.
z
|
a
&
z
|
b
z
|
x
)
7.
y
|
x
&
y
|
c
& (
z
:
.
z
|
x
&
z
|
c
z
|
y
)
y
|
a
&
y
|
b
&
y
|
c
1
step
2
1.
a
:
2.
b
:
3.
c
:
4.
x
:
5.
y
:
6.
x
|
a
&
x
|
b
& (
z
:
.
z
|
a
&
z
|
b
z
|
x
)
7.
y
|
x
&
y
|
c
& (
z
:
.
z
|
x
&
z
|
c
z
|
y
)
z
:
.
z
|
a
z
|
b
z
|
c
z
|
y
1
step
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(3steps total)
PrintForm
Definitions
num
thy
1
Sections
StandardLIB
Doc