nil ; a.as' rev(as') @ [a] (recursive)
T:Type, as:T List. rev(as) 
T List bs ; a.as' [a / (as' @ bs)] (recursive)T:Type, as,bs:T List. (as @ bs) T List| Who Cites reverse? | |
| reverse | Def rev(as) == Case of as; nil nil ; a.as' rev(as') @ [a] (recursive) |
| Thm* T:Type, as:T List. rev(as) T List | |
| append | Def as @ bs == Case of as; nil bs ; a.as' [a / (as' @ bs)] (recursive) |
| Thm* T:Type, as,bs:T List. (as @ bs) T List |
| Syntax: | rev(as) | has structure: | reverse(as) |
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