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Représenter l'espace en logique modale : un panorama - IRIT

Représenter l'espace en logique modale : un panorama - IRIT

Représenter l'espace en logique modale : un panorama - IRIT

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Logique <strong>modale</strong> de la distance : système formel (MS(M))<br />

Axiomes du calcul propositionnel A 1 , A 2 , A 3 et : (a ∈ M)<br />

K’ A<br />

≤ : A ≤a (φ → ψ) → (A ≤a φ → A ≤a ψ),<br />

K’ A<br />

> : A >a (φ → ψ) → (A >a φ → A >a ψ),<br />

T A ≤0 : A ≤0 φ → φ,<br />

T c :<br />

A ≤0 φ → A ≤0 φ,<br />

Diff : E ≤a A >0 φ → A >a φ,<br />

U 1 : □ 0 φ → □ a φ,<br />

U 2 : □ a φ → □ 0 φ,<br />

4 □ : □ a φ → □ a □ a φ,<br />

B □ : φ → □ a ♦ a φ,<br />

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