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At: list length wf nat 1 1 1 1 2 1 2
1. T: Type
2. L: T List
3. u: T
4. v: T List
5. (Case of v; nil 0 ; h.t 1+Y((l,L. Case of L; nil 0 ; h.t 1+l(t)),t))
6. h: T
7. t: T List
8.
9. u1: T
10. v1: T List
11. (l,L. Case of L; nil 0 ; h.t 1+l(t))(Y(l,L. Case of L; nil 0 ; h.t 1+l(t)),v1)

1+Y((l,L. Case of L; nil 0 ; h.t 1+l(t)),v1)
By:
RWH YUnrollC 0
THEN
OnHyps [-1;0] Reduce
Generated subgoal:

111. (Case of v1; nil 0 ; h.t 1+Y((l,L. Case of L; nil 0 ; h.t 1+l(t)),t))
1+(Case of v1; nil 0 ; h.t 1+Y((l,L. Case of L; nil 0 ; h.t 1+l(t)),t))

About:
listlist_ind
intnatural_numberaddlambdaapplyycombuniversemember

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