TY - JOUR
T1 - Call-by-name reduction and cut-elimination in classical logic
AU - Kikuchi, Kentaro
N1 - Funding Information:
I was much inspired by Daisuke Kimura and Stéphane Lengrand on the subject of this paper. I also thank Izumi Takeuti and the anonymous referees of the workshop CL&C’06 and of the present submission for valuable comments. This research was partially supported by the Japanese Ministry of Education, Culture, Sports, Science and Technology, Grant-in-Aid for Young Scientists (B) 17700003.
PY - 2008/4
Y1 - 2008/4
N2 - We present a version of Herbelin's over(λ, -) μ-calculus in the call-by-name setting to study the precise correspondence between normalization and cut-elimination in classical logic. Our translation of λ μ-terms into a set of terms in the calculus does not involve any administrative redexes, in particular η-expansion on μ-abstraction. The isomorphism preserves β, μ-reduction, which is simulated by a local-step cut-elimination procedure in the typed case, where the reduction system strictly follows the " cut=redex" paradigm. We show that the underlying untyped calculus is confluent and enjoys the PSN (preservation of strong normalization) property for the isomorphic image of λ μ-calculus, which in turn yields a confluent and strongly normalizing local-step cut-elimination procedure for classical logic.
AB - We present a version of Herbelin's over(λ, -) μ-calculus in the call-by-name setting to study the precise correspondence between normalization and cut-elimination in classical logic. Our translation of λ μ-terms into a set of terms in the calculus does not involve any administrative redexes, in particular η-expansion on μ-abstraction. The isomorphism preserves β, μ-reduction, which is simulated by a local-step cut-elimination procedure in the typed case, where the reduction system strictly follows the " cut=redex" paradigm. We show that the underlying untyped calculus is confluent and enjoys the PSN (preservation of strong normalization) property for the isomorphic image of λ μ-calculus, which in turn yields a confluent and strongly normalizing local-step cut-elimination procedure for classical logic.
KW - Classical logic
KW - Curry-Howard correspondence
KW - Cut-elimination
KW - Sequent calculus
KW - Strong normalization
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U2 - 10.1016/j.apal.2008.01.002
DO - 10.1016/j.apal.2008.01.002
M3 - Article
AN - SCOPUS:40849137618
SN - 0168-0072
VL - 153
SP - 38
EP - 65
JO - Annals of Pure and Applied Logic
JF - Annals of Pure and Applied Logic
IS - 1-3
ER -