
Abstract Girard's recent system of linear logic is presented in a way that avoids the two-level structure of formulae and sequents, and that minimises the number of primitive function symbols. A deduction theorem is proved concerning the classical implication as embedded in linear logic. The Hilbert-style axiomatisation is proved to be equivalent to the sequent formalism. The axiomatisation leads to a complete class of algebraic models. Various models are exhibited. On the meta-level we use Dijkstra's method of explicit equational proofs.
Deduction theorem, Logic in computer science, Equational proofs, Phase structures, Linear logic, Modes of computation (nondeterministic, parallel, interactive, probabilistic, etc.), Monoid, deduction theorem, Sequent calculus, Proof theory and constructive mathematics, linear logic, Hilbert-style formulation, topological Girard monoids, Model theory, Axiomatisation
Deduction theorem, Logic in computer science, Equational proofs, Phase structures, Linear logic, Modes of computation (nondeterministic, parallel, interactive, probabilistic, etc.), Monoid, deduction theorem, Sequent calculus, Proof theory and constructive mathematics, linear logic, Hilbert-style formulation, topological Girard monoids, Model theory, Axiomatisation
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