(6steps total)
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Definitions
DiscreteMath
Sections
DiscrMathExt
Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
sigma
to
union
wf
1
2
1.
A
: Type
2.
B
: Type
3.
i
:
2
4.
e1
: if
i
=
0
A
else
B
fi
5.
i
= 1
if
i
=
0
inl(
e1
) else inr(
e1
) fi
A
+
B
By:
Subst4: Hyp:5 THEN Reduce 4
Generated subgoal:
1
4.
e1
:
B
5.
i
= 1
2
if
i
=
0
inl(
e1
) else inr(
e1
) fi
A
+
B
1
step
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(6steps total)
PrintForm
Definitions
DiscreteMath
Sections
DiscrMathExt
Doc