(8steps) PrintForm Definitions Lemmas int 2 Sections StandardLIB Doc

At: decidable all int seg 1 1 1

1. i:
2. j:
3. F: {i..j}Prop
4. k:{i..j}. Dec(F(k))
5. (k:{i..j}. F(k)) (k:{i..j}. F(k))

(k:{i..j}. F(k)) (k:{i..j}. F(k))

By: Analyze 5

Generated subgoals:

15. k:{i..j}. F(k)
(k:{i..j}. F(k)) (k:{i..j}. F(k))
25. (k:{i..j}. F(k))
(k:{i..j}. F(k)) (k:{i..j}. F(k))


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intapplyfunctionproporallexists

(8steps) PrintForm Definitions Lemmas int 2 Sections StandardLIB Doc