(7steps total) PrintForm Definitions Lemmas list 1 Sections StandardLIB Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: select append front 1 2 2

1. T : Type
2. T List
3. bs : T List
4. u : T
5. v : T List
6. i:||v||. (v @ bs)[i] = v[i]
7. i : (||v||+1)
8. i = 0
  (u.(v @ bs))[i] = (u.v)[i]


By: RWH (LemmaC Thm* a:Tas:T List, i:. 0<i  i||as||  (a.as)[i] = as[(i-1)])
0


Generated subgoal:

1   (v @ bs)[(i-1)] = v[(i-1)]
1 step

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

(7steps total) PrintForm Definitions Lemmas list 1 Sections StandardLIB Doc