Clearing Subscripts

To remove an assignment involving [Graphics:../Images/tricks_gr_350.gif], say

[Graphics:../Images/tricks_gr_351.gif]
[Graphics:../Images/tricks_gr_352.gif]
[Graphics:../Images/tricks_gr_353.gif]

note that the rule is associated with [Graphics:../Images/tricks_gr_354.gif], not with the variable [Graphics:../Images/tricks_gr_355.gif]:

[Graphics:../Images/tricks_gr_356.gif]
[Graphics:../Images/tricks_gr_357.gif]
[Graphics:../Images/tricks_gr_358.gif]
[Graphics:../Images/tricks_gr_359.gif]
[Graphics:../Images/tricks_gr_360.gif]

You can clear this assignment as follows:

[Graphics:../Images/tricks_gr_361.gif]

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