Nuprl - Proof: iter via intseg all units 1 2 1 1 1

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At: iter via intseg all units 1 2 1 1 1

1. A : Type
2. f : A

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

6. b : {a+1...}
7.

c:{a..b

}, e:({a..c

}

A).
7. (

i:{a..c

}. e(i) = u)

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

}. e(i)) = u
8. e : {a..b

}

A
9.

i:{a..b

}. e(i) = u

f(u,u) = u

By:	BackThru: is_ident(A; f; u)

Generated subgoals:

None

About:

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