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: "strong completeness of coalgebraic modal logics"
  Abstract: Canonical models are of central importance in modal logic, in particular as they witness strong completeness and hence compactness. While the canonical model construction is well understood for Kripke semantics, non-normal modal logics often present subtle difficulties - up to the point that canonical models may fail to exist, as is the case e.g. in most probabilistic logics. Here, we present a generic canonical model construction in the semantic framework of coalgebraic modal logic, which pinpoints coherence conditions between syntax and semantics of modal logics that guarantee strong completeness. We apply this method to reconstruct canonical model theorems that are either known or folklore, and moreover instantiate our method to obtain new strong completeness results. In particular, we prove strong completeness of graded modal logic with finite multiplicities, and of the modal logic of exact probabilities.

Connected through hyperedge HE-1 (induced by source paper "optimal satisfiability checking for arithmetic mu calculi"):
  with members:
    - "permutation games for the weakly aconjunctive mu calculus"
    - "satisfiability games for branching time logics"
    - "unifying buchi complementation constructions"
    - "exptime tableaux for the coalgebraic mu calculus"
    - "pspace bounds for rank 1 modal logics"
    - "decisive markov chains"

Connected through hyperedge HE-2 (induced by source paper "completeness via canonicity in coalgebraic logics"):
  with members:
    - "completeness via canonicity for distributive substructural logics a coalgebraic perspective"
    - "strongly complete logics for coalgebras"
    - "completeness for the coalgebraic cover modality"
    - "pspace bounds for rank 1 modal logics"

Connected through hyperedge HE-3 (induced by source paper "weak completeness of coalgebraic dynamic logics"):
  with members:
    - "a recipe for state and effect triangles"

Connected through hyperedge HE-4 (induced by source paper "subsumption checking in conjunctive coalgebraic fixpoint logics"):
  with members:
    - "simulations and bisimulations for coalgebraic modal logics"
    - "graphical representation of covariant contravariant modal formulae"
    - "pspace bounds for rank 1 modal logics"
    - "the complexity of poor man s logic"

Connected through hyperedge HE-5 (induced by source paper "strongly complete logics for coalgebras"):
  with members:
    - "a cook s tour of the finitary non well founded sets"
    - "neighbourhood structures bisimilarity and basic model theory"

Connected through hyperedge HE-6 (induced by source paper "flat coalgebraic fixed point logics"):
  with members:
    - "exptime tableaux for the coalgebraic mu calculus"
    - "pspace bounds for rank 1 modal logics"
    - "completeness for flat modal fixpoint logics"

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)