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    The identification of P with feasibility is model-depende... — Carmelics
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    Challenges→The complexity class P describes the class of feasibly decidable problems

    The identification of P with feasibility is model-dependent, yet Turing machines do not accurately represent the parallel or quantum computational architectures available in practice.

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    Key Terms

    Feasibility(as used in logic and computation)
    Whether something is actually possible to do in practice, considering real-world limitations like time and resources—not just theoretically possible.
    Model-dependent(logic and philosophy of science)
    Dependent on or relative to a specific framework or set of assumptions; true or valid only within a particular model, rather than being universally true.
    P (in computational theory)(as used in computer science and computational theory)
    A category of computational problems that can be solved quickly by a computer—think of it as the set of problems a machine can answer in a reasonable amount of time.
    Parallel computational architectures(as used in computer science)
    Computer systems that solve problems by processing multiple tasks simultaneously on different processors, rather than one task at a time.

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    Quantum computational architectures(as used in computer science and physics)
    Computers that use quantum mechanics (the physics of tiny particles) to process information in fundamentally different ways than regular computers, potentially solving certain problems much faster.
    Turing machine(Computability theory)
    A formal computational model defined to study the notion of computation, containing elementary arithmetic and capable of expressing universality, negation, and self-reference

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    Proof of definition segments1 linkedTruth & Knowledge1 linked

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    The complexity class P describes the class of feasibly decidable problems

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