(14steps)
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Definitions
Lemmas
int
2
Sections
StandardLIB
Doc
At:
decidable
ex
int
seg
1
1
1.
i:
2.
j:
3.
F:
{i..j
}
Prop
4.
k:{i..j
}. Dec(F(k))
5.
i
j
Dec(
k:{i..j
}. F(k))
By:
Assert (
n:{...j}. i
n
Dec(
k:{n..j
}. F(k)))
THEN
IfLabL [`main`,(InstHyp [i] -1)]
Generated subgoal:
1
n:{...j}. i
n
Dec(
k:{n..j
}. F(k))
About:
(14steps)
PrintForm
Definitions
Lemmas
int
2
Sections
StandardLIB
Doc