About: Normal modal logic

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Set of modal formulas containing all propositional tautologies and all instances of the Kripke schema ◻(A→B)→(◻A→◻B) and closed under modus ponens and necessitation

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  • aro de modalaj formuloj enhavantaj ĉiujn taŭtologiojn de propozicia logiko kaj ĉiujn ekzemplojn de la skemo de Kripke ◻(A→B)→(◻A→◻B), kaj fermita sub implico kaj necesigo (eo)
  • lógica que inclui tautologias e preserva implicações e necessidades modais (pt)
  • set of modal formulas containing all propositional tautologies and all instances of the Kripke schema ◻(A→B)→(◻A→◻B) and closed under modus ponens and necessitation (en)
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  • Normal modal logic (en)
  • Normale Modallogik (de)
  • Logique modale normale (fr)
  • Logica modale normale (it)
  • Lógica modal normal (pt)
  • 正规模态逻辑 (zh)
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