subst(lambda ...), was: multiple evaluations & integrate

• Subject: subst(lambda ...), was: multiple evaluations & integrate
• From: Barton Willis
• Date: Thu, 13 Jun 2013 00:01:47 +0000

I understand the inconsistency. Maybe I'd be happier if some of the functionality of ev was
split into functions with clear semantics. Possibly

 (%i7) '(lambda([x],4))(x)$

 (%i8) ev(%,'lambda);
 (%o8) 4

is clear enough.

I'm OK with using ev(XXX, 'lambda) to my favorite idiom-consistency is good.

--Barton
________________________________


Another example of how (B) is inconsistent with other cases of subst:

    subst( print , 'f , f(23) ) => print(23)     <<< does not print because it does not eval
    subst( lambda([x],print(x)), 'f, f(23) ) => 23  <<< prints and returns 23 because it does eval

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