human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "evolving the incremental λ calculus into a model of forward automatic differentiation ad"):
  Abstract: Formal transformations somehow resembling the usual derivative are surprisingly common in computer science, with two notable examples being derivatives of regular expressions and derivatives of types. A newcomer to this list is the incremental λ-calculus, or ILC, a "theory of changes" that deploys a formal apparatus allowing the automatic generation of efficient update functions which perform incremental computation. The ILC is not only defined, but given a formal machine-understandable definition---accompanied by mechanically verifiable proofs of various properties, including in particular correctness of various sorts. Here, we show how the ILC can be mutated into propagating tangents, thus serving as a model of Forward Accumulation Mode Automatic Differentiation. This mutation is done in several steps. These steps can also be applied to the proofs, resulting in machine-checked proofs of the correctness of this model of forward AD.

Includes members:
  Member "confusion of tagged perturbations in forward automatic differentiation of higher order functions":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "on the versatility of open logical relations continuity automatic differentiation and a containment theorem")
  Member "a theory of changes for higher order languages incrementalizing lambda calculi by static differentiation":
    also connected through other hyperedges:
      (none)

Question: Please tell me which class the source paper 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.PL(Programming Languages)