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Symbol
Make an object not count as index when it is a sub- or super-script
If you want to attach symbols to tensors in sub- or superscript, as
in $A^\dagger$, you need to inform the system that this symbol is not
an index (otherwise it will interpret $A^\dagger A^\dagger$ as two
contracted vectors with vector indices $\dagger$). This is done by
associating the Symbol property to the symbol; in this
example\dagger::Symbol;
ex:= A^{\dagger} A^{\dagger};
\(\displaystyle{}\text{Attached property Symbol to }\dagger.\)
\(\displaystyle{}A^{\dagger} A^{\dagger}\)