Singleton kinds provide an elegant device for expressing type equality information resulting from modern module languages, but they can severely complicate the metatheory of languages in which they appear. I present a translation from a language with singleton kinds to one without, and prove that translation to be sound and complete. This translation is useful for type-preserving compilers generating typed target languages. The proof of soundness and completeness is done by normalizing type equivalence derivations using Stone and Harper's type equivalence decision procedure.

26 pages

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