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Semantic admissibility criteria for deduction rules in S4 and Int

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Translated from Matematicheskie Zametki, Vol. 50, No. 1, pp. 84–91, July, 1991.

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Rybakov, V.V. Semantic admissibility criteria for deduction rules in S4 and Int. Mathematical Notes of the Academy of Sciences of the USSR 50, 714–718 (1991).

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  • Deduction Rule
  • Admissibility Criterion
  • Semantic Admissibility