(17steps total)
PrintForm
Definitions
Lemmas
hol
sum
Sections
HOLlib
Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
hsum
iso
def
1
2
2
1
1
4
1.
'a
: S
2.
'b
: S
3.
y1
:
'b
4.
y
:
'b
5. (
u
:
'a
+
'b
. InjCase(
u
5. (
u
:
'a
+
'b
. InjCase
;
p
.
b
:
.
x
:
'a
.
y
:
'b
. (
x
=
p
)
b
5. (
u
:
'a
+
'b
. InjCase
;
q
.
b
:
.
x
:
'a
.
y
:
'b
. (
y
=
q
)
b
))
5.
(inr(
y1
))
5.
=
5.
(
u
:
'a
+
'b
. InjCase(
u
5. (
u
:
'a
+
'b
. InjCase
;
p
.
b
:
.
x
:
'a
.
y
:
'b
. (
x
=
p
)
b
5. (
u
:
'a
+
'b
. InjCase
;
q
.
b
:
.
x
:
'a
.
y
:
'b
. (
y
=
q
)
b
))
5.
(inr(
y
))
inr(
y1
) = inr(
y
)
'a
+
'b
By:
((EquandMap (
f
.
f
(false
,arb(
'a
),
y1
))
5) THEN (Thin 5) THEN Simp)
THEN
StrongAuto
THEN
Try (Complete (Unfold `label` 0))
Generated subgoal:
1
5.
y1
=
y
inr(
y1
) = inr(
y
)
'a
+
'b
1
step
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(17steps total)
PrintForm
Definitions
Lemmas
hol
sum
Sections
HOLlib
Doc