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 KASH3 Reference Manual
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Function

PositionProperty ( list l, func pred ) -> elt-ord^rat

Optional Arguments

FailanyDetermines what to return in case of failure.

Description

Return the position of the first element of `l' which suffices the predicate function `pred'.
Return FAILURE if no such element exists in `l'.
Note: Apparently `pred' must have `-> elt-alg^boo' out-signature.

Examples

PositionProperty([50..100],IsPrime);
PositionProperty([2,4,6,8,12,50,100],i->i mod 5=0);
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