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Up N' Down values.


Hi there,

I'm having some hard time trying to define "up values" to subscripted
variables, what I would like to do is (Latex notations)

d_1 /: Equal[d_1,0]:=False

Ok, I know that the full form of d_1 is Subscript[d,1] so I've tried;

Subscript /: Equal[Subscript[d,1],0]:=Flase

and

d /: Equal[Subscript[d,1],0]:=Flase

but none seems to work, I get the error message:

TagSetDelayed::"tagnf": "Tag d not found in False==0.

which I don't understand.

Any idea?

Regards.
\/\\/\/\/>> Gadi ORON <<\/\/\/\/
EMAIL :  oron at pmmh.espci.fr  
Homepage : http://www.pmmh.espci.fr/~oron/personal.html ICQ#7316619



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