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I'm creating a Cadabra notebook showing how the Bianchi identities are obtained, using the structural equations.

Although I achieve the goal, it is useful to show the results introducing an exterior covariant derivative, $D$. Such derivative is not nilpotent, i.e. $D^2 \neq 0$.

I tried the following

D{#}::LaTeXForm("{\rm D}").

but I think that the last declaration spoils the super-commutativity of the differential forms.


How could I possible define a non-nilpotent exterior derivative?

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