(14steps)
PrintForm
Definitions
Lemmas
int
2
Sections
StandardLIB
Doc
At:
decidable
ex
int
seg
1
2
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:
Sel 2 (Analyze 0)
THEN
Analyze 0
THEN
Analyze -1
Generated subgoals:
None
About:
(14steps)
PrintForm
Definitions
Lemmas
int
2
Sections
StandardLIB
Doc