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We give a Dialectica-style interpretation of first-order classical affine logic. By moving to a contraction-free logic, the translation (a.k.a. D-translation) of a first-order formula into a higher-type $\exists\forall$-formula can be made symmetric with respect to duality, including exponentials. It turned out that the propositional part of our D-translation uses the same construction as de Paiva's dialectica category GC and we show how our D-translation extends GC to the first-order setting in terms of an indexed category. Furthermore the combination of Girard's ?!-translation and our D-translation results in the essentially equivalent $\exists\forall$-formulas as the double-negation translation and Godel's original D-translation.
@article{TAC_2006_17_a3, author = {Masaru Shirahata}, title = {The {Dialectica} interpretation of first-order classical affine logic}, journal = {Theory and applications of categories}, pages = {49--79}, publisher = {mathdoc}, volume = {17}, year = {2006}, language = {en}, url = {http://geodesic.mathdoc.fr/item/TAC_2006_17_a3/} }
Masaru Shirahata. The Dialectica interpretation of first-order classical affine logic. Theory and applications of categories, Chu spaces: theory and applications, Tome 17 (2006), pp. 49-79. http://geodesic.mathdoc.fr/item/TAC_2006_17_a3/