Nuprl - Proof: strongwf-implies 1 1 1

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At: strongwf-implies 1 1 1

1. T : Type
2. R : T

Type
3. f : T

x,y:T. R(x,y)

f(x)<f(y)
5. P : T

Prop
6.

j:T. (

k:T. R(k,j)

P(k))

P(j)
7. i :

i1:

. i1<i

(

x:T. f(x) = i1

P(x))
9. x : T
10. f(x) = i
11. k : T
12. R(k,x)
13. f(k)<f(x)

P(k)

By:	InstHyp [f(k);k] 8

Generated subgoals:

None

About:

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