Abstract
We introduce a graph-theoretical representation of proofs of multiplicative linear logic which yields both a denotational semantics and a notion of truth. For this, we use a locative approach (in the sense of ludics) related to game semantics and the Danos-Regnier interpretation of GoI operators as paths in proof nets. We show how we can retrieve from this locative framework both a categorical semantics for MLL with distinct units and a notion of truth. Moreover, we show how a restricted version of our model can be reformulated in the exact same terms as Girard's latest geometry of interaction. This shows that this restriction of our framework gives a combinatorial approach to J.-Y. Girard's geometry of interaction in the hyperfinite factor, while using only graph-theoretical notions.
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