| Chantal Berline. A presentation of the curry-howard correspondance, 1997. |
....be constructed. One of the most striking features of intuitionistic logic is that the rule of excluded middle (# # #) is no longer valid. Apart from its philosophical interest, intuitionistic logic proved to be extremely useful in computer science (illustrated by the Curry Howard correspondence [2]) We define the modal logic IS4 as an extension of the propositional intuitionistic logic, to which a modal operator # (usually called necessity operator) is added. This operator verifies the following axioms and rules : ## Knowledge Generalization Rule (## ##) Deduction axiom ....
Chantal Berline. A presentation of the curry-howard correspondance, 1997.
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