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At: sfa doc sexprcarsize 1

1. A : Type
2. s : Sexpr(A)
3. Size(s 1
  Size(sexprCar(s))<Size(s)


By: AbRecTypeInd Hyp:-2


Generated subgoal:

1 2. Q : Sexpr(A)Prop
3. s:{s:Sexpr(A)| Q(s) }. Size(s 1  Size(sexprCar(s))<Size(s)
4. s : ({s:Sexpr(A)| Q(s) }{s:Sexpr(A)| Q(s) })+A
  Size(s 1  Size(sexprCar(s))<Size(s)

3 steps

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

(5steps total) PrintForm Definitions NuprlPrimitives Sections NuprlLIB Doc