(11steps total)
PrintForm
Definitions
fun
1
Sections
StandardLIB
Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
fun
with
inv
is
bij
1
1
1.
A
: Type
2.
B
: Type
3.
f
:
A
B
4.
g
:
B
A
5.
g
o
f
= Id
6.
f
o
g
= Id
Bij(
A
;
B
;
f
)
By:
Repeat (Unfolds [`biject`;`inject`;`surject`] 0) THEN GenUnivCD
Generated subgoals:
1
7.
a1
:
A
8.
a2
:
A
9.
f
(
a1
) =
f
(
a2
)
a1
=
a2
4
steps
2
7.
b
:
B
a
:
A
.
f
(
a
) =
b
4
steps
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(11steps total)
PrintForm
Definitions
fun
1
Sections
StandardLIB
Doc
B
Bij(A; B; f)
a:A. f(a) = b
