SubValues, as discussed in a previous question, are declared as follows ...
I've got a situation where I have, say 4 symbols, a, b, c and ...
When reading through the documentation, you often encounter the phrases DownValues, UpValues, ...
In a previous question on collecting terms for a multivariable polynomial, I answered with a solution that required a unused symbol to be used for a temporary substitution and back substitution. It ...
Consider the case where a symbol has multiple definitions attached to it, a /: Subscript[a,2] := 1 a[b_] := 2 a[b_, c_] := 3 How does one clear (/unset/remove) ...