KASH3 Ref - Position

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| ### Function Position ( dry D, any a ) -> elt-ord^rat ### Optional Arguments
Start | elt-ord^rat | (Default: 1) | Determines the position where the search is started.
Fail | any |  | Determines what to return in case of failure.
### Description Return the position of the occurence of `a' in `D' if `a in D' is true, and FAILURE otherwise. ### Examples D:=Dry([1,12,4,3]); Position(D,12); Position(D,1,rec(Start:=2)); Position(D,"foo");
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