(8steps total)
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DiscreteMath
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DiscrMathExt
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IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
inj
point
deletion
inj
1
1.
A
: Type
2.
B
: Type
3.
f
:
A
B
4. Inj(
A
;
B
;
f
)
5.
a
:
A
6.
f
{
x
:
A
|
x
=
a
}
{
y
:
B
|
y
=
f
(
a
) }
f
{
x
:
A
|
x
=
a
} inj
{
y
:
B
|
y
=
f
(
a
) }
By:
ApFun:
f
A
B
to:
a
Generated subgoal:
1
7.
f
(
a
)
B
f
{
x
:
A
|
x
=
a
} inj
{
y
:
B
|
y
=
f
(
a
) }
6
steps
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(8steps total)
PrintForm
Definitions
Lemmas
DiscreteMath
Sections
DiscrMathExt
Doc