Results 11 to 20 of about 16,571,812 (297)

Open Higher-Order Logic. [PDF]

open access: yes, 2023
We introduce a variation on Barthe et al.’s higher-order logic in which formulas are interpreted as predicates over open rather than closed objects. This way, concepts which have an intrinsically functional nature, like continuity, differentiability, or monotonicity, can be expressed and reasoned about in a very natural way, following the structure of ...
Ugo Dal Lago   +2 more
openaire   +7 more sources

CERES in higher-order logic [PDF]

open access: yesAnnals of Pure and Applied Logic, 2011
Cut-elimination by resolution (CERES) for first-order logic [\textit{M. Baaz} et al., Lect. Notes Comput. Sci. 3452, 481--495 (2005; Zbl 1108.03305)] transforms the set of cut-formulas in a given proof \(\pi\) into a refutable formula \(R\). Given a resolution refutation of \(R\), cuts are sufficiently easily eliminated from \(\pi\).
Stefan Hetzl   +2 more
openaire   +4 more sources

Higher-Order Coalition Logic [PDF]

open access: yes, 2010
We introduce and study higher-order coalition logic, a multi modal monadic second-order logic with operators [{x}ψ]φ expressing that the coalition of all agents satisfying ψ(x) can achieve a state in which φ holds. We use neighborhood semantics to model extensive games of perfect information with simultaneous actions and
BOELLA, Guido   +3 more
openaire   +4 more sources

Refinement of Higher-Order Logic Programs [PDF]

open access: yes, 2003
A refinement calculus provides a method for transforming specifications to executable code, maintaining the correctness of the code with respect to its specification. In this paper we extend the refinement calculus for logic programs to include higher-order programming capabilities in specifications and programs, such as procedures as terms and lambda ...
Robert Colvin   +3 more
openaire   +4 more sources

Extensional Higher-Order Logic Programming [PDF]

open access: yesACM Transactions on Computational Logic, 2010
We propose a purely extensional semantics for higher-order logic programming. In this semantics program predicates denote sets of ordered tuples, and two predicates are equal iff they are equal as sets. Moreover, every program has a unique minimum Herbrand model which is the greatest lower bound of all Herbrand models of the program and the least fixed-
Angelos Charalambidis   +3 more
core   +8 more sources

Embedding of Quantified Higher-Order Nominal Modal Logic into Classical Higher-Order Logic

open access: yesEPiC Series in Computing, 2018
In this paper, we present an embedding of higher-order nominal modal logicinto classical higher-order logic, and study its automation. There exists no automated theorem prover for first-order or higher-order nominal logic at the moment, hence, this is the first automation for this kind of logic.In our work, we focus on nominal tense logic and have ...
Wisniewski, Max, STEEN, Alexander
openaire   +5 more sources

Taking Stock: Hale, Heck, and Wright on Neo-Logicism and Higher-Order Logic [PDF]

open access: yes, 2021
Four philosophical concerns about higher-order logic in general and the specific demands placed on it by the neo-logicist project are distinguished.
Wright, Crispin
core   +1 more source

Extensional Semantics for Higher-Order Logic Programs with Negation [PDF]

open access: yesLogical Methods in Computer Science, 2018
We develop an extensional semantics for higher-order logic programs with negation, generalizing the technique that was introduced in [Bezem99,Bezem01] for positive higher-order programs.
Panos Rondogiannis, Ioanna Symeonidou
doaj   +1 more source

Superposition for Full Higher-order Logic [PDF]

open access: yes, 2021
AbstractWe recently designed two calculi as stepping stones towards superposition for full higher-order logic: Boolean-free$$\lambda $$λ-superposition and superposition for first-order logic with interpreted Booleans. Stepping on these stones, we finally reach a sound and refutationally complete calculus for higher-order logic with polymorphism ...
Alexander Bentkamp   +3 more
openaire   +4 more sources

Grundlagen §64: an alternative strategy to account for second-order abstraction

open access: yesPrincipia: An International Journal of Epistemology, 2022
A famous passage in Section 64 of Frege’s Grundlagen may be seen as a justification for the truth of abstraction principles. The justification is grounded in the procedure of content recarving which Frege describes in the passage.
Vincenzo Ciccarelli
doaj   +1 more source

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