A question on capital and lower-case symbols

>>>>> "Nikolaos" == Nikolaos I Ioakimidis <ioakimidis@otenet.gr> writes:

    Nikolaos> (C2) A;
    Nikolaos> (D2)         A
    Nikolaos> (C3) a1:2;
    Nikolaos> (D3)         2
    Nikolaos> (C4) A1;
    Nikolaos> (D4)         2
    Nikolaos> (C5) aa:3;
    Nikolaos> (D5)         3
    Nikolaos> (C6) AA;
    Nikolaos> (D6)         AA

    Nikolaos> Could you, please, be so kind to help me?

It usually means A1 has been used somewhere within maxima.  I see that
it exists but have no idea where it's being used or how it gets
defined.

Perhaps now would be a good time to try to implement the MAXIMA and
MAXIMA-USER package idea.  Then only explicitly exported symbols from
MAXIMA will get this treatment (I think).  But this is a pretty major
undertaking. 

Ray