Nuprl - Proof: iter via intseg split mid 1 1

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: iter via intseg split mid 1 1

1. A : Type
2. f : A

A
3. u : A
4. is_ident(A; f; u)
5. is_assoc_sep(A; f)
6. a :

7. c :

8. a = c

, e:({a..b

}

A).

(Iter(f;u) i:{a..b

}. e(i))

f((Iter(f;u) i:{a..c

}. e(i)),Iter(f;u) i:{c..b

}. e(i))

By:	Auto THEN Rewrite by a = c

Generated subgoal:

1 9. b :
10. e : {a..b}A
11. ac
12. cb
  (Iter(f;u) i:{c..b}. e(i))
  =
  f((Iter(f;u) i:{c..c}. e(i)),Iter(f;u) i:{c..b}. e(i))
2 steps

About:

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html