(12steps total)
PrintForm
Definitions
DiscreteMath
Sections
DiscrMathExt
Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
bij
imp
exists
inv
version2
1
1
1.
A
: Type
2.
B
: Type
3.
f
:
A
B
4. Inj(
A
;
B
;
f
)
5. Surj(
A
;
B
;
f
)
b
:
B
.
!
a
:
A
.
f
(
a
) =
b
By:
SimilarTo: Surj(
A
;
B
;
f
)
Generated subgoal:
1
5.
b
:
B
6.
a
:
A
7.
f
(
a
) =
b
a is the
a
:
A
.
f
(
a
) =
b
2
steps
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(12steps total)
PrintForm
Definitions
DiscreteMath
Sections
DiscrMathExt
Doc
B
b:B. 
!a:A. f(a) = b
