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arXiv 2504.03495cs.LO
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作为不动点和博弈的微分方程

Differential Equations as Fixpoints and Games

Karlsruhe Institute of Technology(卡尔斯鲁厄理工学院)

Noah Abou El Wafa, André Platzer

AI总结:

研究通过证明一阶博弈逻辑GL与一阶模态μ-演算L_mu等表达且等价,统一博弈与不动点。还证明了微分方程扩展dGL和微分模态μ-演算的等表达性与等价性,可对常微分方程完全公理化,通过证明搜索判定其性质,有理博弈得出dGL的强算术完备性定理。

摘要:

通过证明一阶博弈逻辑GL和一阶模态μ-演算L_mu具有等表达性和等价性,将博弈和不动点统一起来,从而使它们的表达和演绎能力完全对齐。存在从GL到L_mu的语义保持翻译,反之亦然,且两种翻译都保持可证性。与命题情况不同,在命题情况中博弈逻辑表达力严格低于模态μ-演算。还证明了微分方程扩展、微分博弈逻辑(dGL)和微分模态μ-演算具有等表达性和等价性。由于连续动力学可由不动点或博弈定义,常微分方程可被完全公理化,ODEs的无穷小鲁棒性质可通过证明搜索来判定。有理博弈可将博弈简化为单人博弈,从而为具有有理时间ODEs的dGL得出一个强算术完备性定理。

英文摘要:

Games and fixpoints are unified by proving that first-order game logic GL and the first-order modal mu-calculus L_mu are proved to be equiexpressive and equivalent, thereby fully aligning their expressive and deductive power. That is, there is a semantics-preserving translation from GL to L_mu, and vice versa. And both translations are provability-preserving, while equivalence with there-and-back-again roundtrip translations are provable in both calculi. This is to be contrasted with the propositional case, where game logic is strictly less expressive than the modal mu-calculus (without adding sabotage games). The extensions with differential equations, differential game logic (dGL) and differential modal mu-calculus, are also proved equiexpressive and equivalent. Moreover, as the continuous dynamics are definable by fixpoints or via games, ODEs can be axiomatized completely and, as a consequence, infinitesimally robust properties of ODEs can be decided via proof search. Rational gameplay provably collapses the games into single-player games to yield a strong arithmetical completeness theorem for dGL with rational-time ODEs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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