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: "partial order infinitary term rewriting"
  Abstract: We study an alternative model of infinitary term rewriting. Instead of a#N#metric on terms, a partial order on partial terms is employed to formalise#N#convergence of reductions. We consider both a weak and a strong notion of#N#convergence and show that the metric model of convergence coincides with the#N#partial order model restricted to total terms. Hence, partial order convergence#N#constitutes a conservative extension of metric convergence, which additionally#N#offers a fine-grained distinction between different levels of divergence. In#N#the second part, we focus our investigation on strong convergence of orthogonal#N#systems. The main result is that the gap between the metric model and the#N#partial order model can be bridged by extending the term rewriting system by#N#additional rules. These extensions are the well-known B\"ohm extensions. Based#N#on this result, we are able to establish that -- contrary to the metric setting#N#-- orthogonal systems are both infinitarily confluent and infinitarily#N#normalising in the partial order setting. The unique infinitary normal forms#N#that the partial order model admits are B\"ohm trees.

Connected through hyperedge HE-1 (induced by source paper "a new coinductive confluence proof for infinitary lambda calculus"):
  with members:
    - "coinductive foundations of infinitary rewriting and infinitary equational logic"
    - "strict ideal completions of the lambda calculus"
    - "coinduction an elementary approach"
    - "nominal coalgebraic data types with applications to lambda calculus"
    - "on streams that are finitely red"
    - "resumptions weak bisimilarity and big step semantics for while with interactive i o an exercise in mixed induction coinduction"
    - "infinitary combinatory reduction systems normalising reduction strategies"
    - "infinitary combinatory reduction systems confluence"

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)