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    Decidability of Multi-modal Logic LTK of Linear Time and Knowledge

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    Thepaperinvestigates modal(temporal-model) logicsbased at a semantic approach with models combining knowledge and time. We introduce multi-modal logics LT Kr and LT Kir containing modalities for knowledge and time as the sets of all LT Kr -valid, and LT Kir -valid formulae for a class of special LT Kr frames, LT Kir -frames, respectively. The main results of this paper are theorems stating that LT Kr and LT Kir are decidable; we also give an explicit solving algorithm.Π’ прСдставлСнной ΡΡ‚Π°Ρ‚ΡŒΠ΅ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅Ρ‚ΡΡ сСмантичСский ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ ΠΊ ΠΏΠΎΡΡ‚Ρ€ΠΎΠ΅Π½ΠΈΡŽ ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ, ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ…ΠΌΠΎΠ΄Π°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ знания ΠΈΠ²Ρ€Π΅ΠΌΠ΅Π½ΠΈ.Π‘Π΅ΠΌΠ°Π½Ρ‚ΠΈΡ‡Π΅ΡΠΊΠΈΠ²Π²ΠΎΠ΄ΡΡ‚ΡΡΠΌΠ½ΠΎΠ³ΠΎΠΌΠΎΠ΄Π°Π»ΡŒΠ½Ρ‹Π΅Π»ΠΎΠ³ΠΈΠΊΠΈ LT Kr ΠΈ LT Kir , содСрТащиС ΠΌΠΎΠ΄Π°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ знания ΠΈ Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ ΠΊΠ°ΠΊ мноТСство Ρ„ΠΎΡ€ΠΌΡƒΠ», истинных Π½Π° Ρ„Ρ€Π΅ΠΉΠΌΠ°Ρ… ΡΠΏΠ΅Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π²ΠΈΠ΄Π°. Π“Π»Π°Π²Π½Ρ‹ΠΌ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠΌ Ρ€Π°Π±ΠΎΡ‚Ρ‹ ΡΠ²Π»ΡΡŽΡ‚ΡΡ Ρ‚Π΅ΠΎΡ€Π΅ΠΌΡ‹ ΠΎΠ± эффСктивной Ρ„ΠΈΠ½ΠΈΡ‚Π½ΠΎΠΉ аппроксимируСмости ΠΈ, ΠΊΠ°ΠΊ слСдствиС, Ρ€Π°Π·Ρ€Π΅ΡˆΠΈΠΌΠΎΡΡ‚ΠΈ Π΄Π°Π½Π½Ρ‹Ρ… Π»ΠΎΠ³ΠΈΠΊ

    Decidability of Multi-modal Logic LTK of Linear Time and Knowledge

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    Thepaperinvestigates modal(temporal-model) logicsbased at a semantic approach with models combining knowledge and time. We introduce multi-modal logics LT Kr and LT Kir containing modalities for knowledge and time as the sets of all LT Kr -valid, and LT Kir -valid formulae for a class of special LT Kr frames, LT Kir -frames, respectively. The main results of this paper are theorems stating that LT Kr and LT Kir are decidable; we also give an explicit solving algorithm.Π’ прСдставлСнной ΡΡ‚Π°Ρ‚ΡŒΠ΅ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅Ρ‚ΡΡ сСмантичСский ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ ΠΊ ΠΏΠΎΡΡ‚Ρ€ΠΎΠ΅Π½ΠΈΡŽ ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ, ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ…ΠΌΠΎΠ΄Π°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ знания ΠΈΠ²Ρ€Π΅ΠΌΠ΅Π½ΠΈ.Π‘Π΅ΠΌΠ°Π½Ρ‚ΠΈΡ‡Π΅ΡΠΊΠΈΠ²Π²ΠΎΠ΄ΡΡ‚ΡΡΠΌΠ½ΠΎΠ³ΠΎΠΌΠΎΠ΄Π°Π»ΡŒΠ½Ρ‹Π΅Π»ΠΎΠ³ΠΈΠΊΠΈ LT Kr ΠΈ LT Kir , содСрТащиС ΠΌΠΎΠ΄Π°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ знания ΠΈ Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ ΠΊΠ°ΠΊ мноТСство Ρ„ΠΎΡ€ΠΌΡƒΠ», истинных Π½Π° Ρ„Ρ€Π΅ΠΉΠΌΠ°Ρ… ΡΠΏΠ΅Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π²ΠΈΠ΄Π°. Π“Π»Π°Π²Π½Ρ‹ΠΌ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠΌ Ρ€Π°Π±ΠΎΡ‚Ρ‹ ΡΠ²Π»ΡΡŽΡ‚ΡΡ Ρ‚Π΅ΠΎΡ€Π΅ΠΌΡ‹ ΠΎΠ± эффСктивной Ρ„ΠΈΠ½ΠΈΡ‚Π½ΠΎΠΉ аппроксимируСмости ΠΈ, ΠΊΠ°ΠΊ слСдствиС, Ρ€Π°Π·Ρ€Π΅ΡˆΠΈΠΌΠΎΡΡ‚ΠΈ Π΄Π°Π½Π½Ρ‹Ρ… Π»ΠΎΠ³ΠΈΠΊ
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