(4steps total)
PrintForm
Definitions
Lemmas
mb
nat
Sections
MarkB
generic
Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
rel
star
symmetric
1
1.
T
: Type
2.
R
:
T
T
Prop
3.
a
,
b
:
T
. (
a
R
b
)
(
b
R
a
)
4.
a
:
T
5.
b
:
T
6.
a
(
R
^*)
b
b
(
R
^*)
a
By:
Using [`
R1
',
R
^-1]
(BackThru
(
Thm*
R1
,
R2
:(
T
T
Prop),
x
,
y
:
T
.
R1
=>
R2
(
x
(
R1
^*)
y
)
(
x
(
R2
^*)
y
))
Generated subgoals:
1
R
^-1 =>
R
1
step
2
b
(
R
^-1^*)
a
1
step
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(4steps total)
PrintForm
Definitions
Lemmas
mb
nat
Sections
MarkB
generic
Doc