
doi: 10.1007/bf01880329
Several authors suggested extension of Horn clause programming using bottom-up proof search in Gentzen-type systems for intuitionistic logic with suitable restriction of the language. The author describes a similar program based on the relevance logic LR\(^ +\) without negation and distributivity axiom. Language is restricted to banish negative occurrences of disjunction. For this fragment, relevance logic R is conservative over RL\(^ +\) as the author conjectured. This is Corollary 1 in the reviewer's paper [Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 32, 90-97 (1973; Zbl 0374.02017)] .
Mechanization of proofs and logical operations, Substructural logics (including relevance, entailment, linear logic, Lambek calculus, BCK and BCI logics), Cut-elimination and normal-form theorems, Logic programming, relevance logic
Mechanization of proofs and logical operations, Substructural logics (including relevance, entailment, linear logic, Lambek calculus, BCK and BCI logics), Cut-elimination and normal-form theorems, Logic programming, relevance logic
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