lambda related question



On 12/23/11 7:07 AM, Stavros Macrakis wrote:
>     subst(expr,'expr,lambda([i],expr))
>     buildq([expr],lambda([i],expr))
>
> Both return lambda([i],i).
>
> Examples of use:
>
>     expr: '(i^2)$
>     myfun: subst(expr,'expr,lambda([i],expr))$
>     myfun(5) => 25
>
> or simply
>
>     lambda([i],ev(expr))(5) => 25
>
Is this one of the cases where ev is the right thing to use?

Ray