human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "undecidability of equality in the free locally cartesian closed category extended version"
  Abstract: We show that a version of Martin-Lof type theory with an extensional identity type former I, a unit type N-1, Sigma-types, Pi-types, and a base type is a free category with families (supporting these type formers) both in a 1- and a 2-categorical sense. It follows that the underlying category of contexts is a free locally cartesian closed category in a 2-categorical sense because of a previously proved biequivalence. We show that equality in this category is undecidable by reducing it to the undecidability of convertibility in combinatory logic. Essentially the same construction also shows a slightly strengthened form of the result that equality in extensional Martin-Lof type theory with one universe is undecidable.

Connected through hyperedge HE-1 (induced by source paper "cubical syntax for reflection free extensional equality"):
  with members:
    - "algebraic type theory and universe hierarchies"
    - "on higher inductive types in cubical type theory"
    - "canonicity and normalisation for dependent type theory"
    - "design and implementation of the andromeda proof assistant"
    - "the redprl proof assistant invited paper"
    - "cubical type theory a constructive interpretation of the univalence axiom"
    - "canonicity for cubical type theory"

Connected through hyperedge HE-2 (induced by source paper "categories with families unityped simply typed and dependently typed"):
  with members:
    - "undecidability of equality in the free locally cartesian closed category"
    - "the biequivalence of locally cartesian closed categories and martin lof type theories"

Connected through hyperedge HE-3 (induced by source paper "algebraic type theory and universe hierarchies"):
  with members:
    - "second order algebraic theories"

Connected through hyperedge HE-4 (induced by source paper "modal dependent type theory and dependent right adjoints"):
  with members:
    - "the clocks they are adjunctions denotational semantics for clocked type theory"
    - "denotational semantics for guarded dependent type theory"
    - "internal universes in models of homotopy type theory"
    - "dual context calculi for modal logic"
    - "fitch style modal lambda calculi"
    - "guarded dependent type theory with coinductive types"
    - "cubical type theory a constructive interpretation of the univalence axiom"
    - "programming and reasoning with guarded recursion for coinductive types"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.LO(Logic in Computer Science)