(7steps total) PrintForm Definitions Lemmas list 1 Sections StandardLIB Doc
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At: select append front 1 2 1

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:i (a.as)[i] = a) 0


Generated subgoals:

None

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

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