About: Classical modal logic

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Modal logic containing the duality axiom schema ◊A↔¬◻¬A as well as the deduction rule A↔B ⊢ ◻A↔◻B

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  • sistemo de modala logiko, kiu enhavas la aksiomskemon de dualeco ◊A↔¬◻¬A kaj la deduktoprincipo A↔B ⊢ ◻A↔◻B (eo)
  • lógica que estuda modalidades como possibilidade, necessidade e contingência (pt)
  • modal logic containing the duality axiom schema ◊A↔¬◻¬A as well as the deduction rule A↔B ⊢ ◻A↔◻B (en)
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  • Classical modal logic (en)
  • Logica modale classica (it)
  • Lógica modal clássica (pt)
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