Results 21 to 30 of about 1,740 (284)

Free variable sequent calculi [PDF]

open access: yes, 2003
This is a thesis about free variable sequent calculi for first-order languages without equality. A brief summary: Chapter 1 and 2 are mainly background material. Chapter 3 introduces a way of representing and reasoning about relations between inferences and sketches a method for syntactical soundness proofs; more precisely, soundness results from one ...
Antonsen, Roger
openaire   +2 more sources

A derivation-loop method for temporal logic

open access: yesLietuvos Matematikos Rinkinys, 2019
Various types of calculi (Hilbert, Gentzen sequent, resolution calculi, tableaux) for propositional linear temporal logic (PLTL) have been considered in the literature.
Romas Alonderis, Haroldas Giedra
doaj   +1 more source

Dual-Context Calculi for Modal Logic [PDF]

open access: yesLogical Methods in Computer Science, 2020
We present natural deduction systems and associated modal lambda calculi for the necessity fragments of the normal modal logics K, T, K4, GL and S4. These systems are in the dual-context style: they feature two distinct zones of assumptions, one of which
G. A. Kavvos
doaj   +1 more source

Two loop detection mechanisms: a comparison [PDF]

open access: yes, 1997
In order to compare two loop detection mechanisms we describe two calculi for theorem proving in intuitionistic propositional logic. We call them both MJ Hist, and distinguish between them by description as `Swiss' or `Scottish'. These calculi combine in
Howe, J. M.   +3 more
core   +1 more source

Sequent Calculi for ‘Generally’

open access: yesElectronic Notes in Theoretical Computer Science, 2008
AbstractLogics of ‘generally’ (LG's) were introduced for handling assertions with some versions of vague notions (e.g. ‘generally’, ‘most’, ‘several’), which occur often in ordinary language and in science. LG's provide a framework for distinct notions of ‘generally’: one builds a specific logic for the notion one has in mind.
Leonardo B. Vana   +2 more
openaire   +1 more source

Two-sided Sequent Calculi for FDE-like Four-valued Logics [PDF]

open access: yes, 2023
We present a method that generates two-sided sequent calculi for four-valued logics like first degree entailment (FDE). (We say that a logic is FDE-like if it has finitely many operators of finite arity, including negation, and if all of its operators ...
Kooi, Barteld   +2 more
core   +1 more source

Contraction-free calculi for modal logics S5 and KD45

open access: yesLietuvos Matematikos Rinkinys, 2011
It is known that termination and backtracking are among the most important problems in constructing derivations in non-classical logics. In this paper contractionfree and backtracking-free sequent calculi for modal logics S5 and KD45 are presented and ...
Julius Andrikonis   +1 more
doaj   +1 more source

Cut free sequent calculus for logic S5n(ED)

open access: yesLietuvos Matematikos Rinkinys, 2010
Hilbert style, Gentzen style sequent and Kanger style sequent calculi for logic S5n(ED) are considered in this paper. Gentzen style sequent calculus is constructed and its equivalence with Hilbert style system is proved, getting soundness and ...
Haroldas Giedra
doaj   +1 more source

Modularisation of Sequent Calculi for Normal and Non-normal Modalities [PDF]

open access: yes, 2019
In this work, we explore the connections between (linear) nested sequent calculi and ordinary sequent calculi for normal and non-normal modal logics. By proposing local versions to ordinary sequent rules, we obtain linear nested sequent calculi for a ...
Pimentel, Elaine; orcid:   +1 more
core   +1 more source

LNL polycategories and doctrines of linear logic [PDF]

open access: yesLogical Methods in Computer Science, 2023
We define and study LNL polycategories, which abstract the judgmental structure of classical linear logic with exponentials. Many existing structures can be represented as LNL polycategories, including LNL adjunctions, linear exponential comonads, LNL ...
Michael Shulman
doaj   +1 more source

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