Type additivity: if `R/J` embeds with finite-length cokernel into a product of algebras over unramified extensions, then the type of `R/J` is the sum of the residue-scaled types.

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Type additivity: if `R/J` embeds with finite-length cokernel into a product of algebras over unramified extensions, then the type of `R/J` is the sum of the residue-scaled types. · Prove2Me