(12steps total)
PrintForm
Definitions
Lemmas
DiscreteMath
Sections
DiscrMathExt
Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
dedekind
inf
imp
inf
1
1.
A
: Type
2.
a
:
A
,
f
:(
A
A
). Inj(
A
;
A
;
f
) &
(
x
:
A
.
f
(
x
) =
a
)
(
inj
A
)
By:
ExistHD Hyp:-1 THEN Witness:
i
.
f
{
i
}(
a
)
Generated subgoal:
1
2.
a
:
A
3.
f
:
A
A
4. Inj(
A
;
A
;
f
)
5.
(
x
:
A
.
f
(
x
) =
a
)
(
i
.
f
{
i
}(
a
))
inj
A
10
steps
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(12steps total)
PrintForm
Definitions
Lemmas
DiscreteMath
Sections
DiscrMathExt
Doc
a:A, f:(A
A). Inj(A; A; f) & 
(
(
inj
A)
i.f{
i}(a)
