Results 21 to 30 of about 719,711 (199)

Universe of Discourse and Existence

open access: yesMathematics, 2018
There is a fairly widespread belief that the problem of existence is not an essential issue for logic. Logic, though formal, must deal with the problem of existence.
José Luis Usó-Doménech   +2 more
doaj   +1 more source

Belief Change in Nonmonotonic Multi-Context Systems [PDF]

open access: yes, 2013
Brewka and Eiter's nonmonotonic multi-context system is an elegant knowledge representation framework to model heterogeneous and nonmonotonic multiple contexts. Belief change is a central problem in knowledge representation and reasoning.
Yisong Wang   +5 more
core   +1 more source

Temporal Context-Based Delegation

open access: yesApplied Artificial Intelligence, 2019
In this paper, we put forward a dynamic delegation model based on a temporal context. Delegation is the process of granting a specific authorization from a user to another user of the same system to carry out some functions on his behalf.
Ouarda Bettaz   +2 more
doaj   +1 more source

Induction and Confirmation Theory: An Approach based on a Paraconsistent Nonmonotonic Logic [PDF]

open access: yesPrincípios, 2010
This paper is an effort to realize and explore the connections that exist between nonmonotonic logic and confirmation theory. We pick up one of the most wide-spread nonmonotonic formalisms – default logic – and analyze to what extent and under what ...
Ricardo Sousa Silvestre
doaj  

Ancestor Worship in The Logic of Games. How foundational were Aristotle's contributions?

open access: yesThe Baltic International Yearbook of Cognition, Logic and Communication, 2013
Notwithstanding their technical virtuosity and growing presence in mainstream thinking, game theoretic logics have attracted a sceptical question: "Granted that logic can be done game theoretically, but what would justify the idea that this is the ...
John Woods
doaj   +1 more source

Cobalt‐Catalyzed C─N Bond Formation via Metal‐Hydride Hydrogen Atom Transfer (MHAT)

open access: yesAngewandte Chemie, EarlyView.
Cobalt‐catalyzed metal‐hydride hydrogen atom transfer (Co‐MHAT) converts simple alkenes into C─N bonds under mild, near‐neutral conditions. A shared Co─H‐initiated radical/organocobalt intermediate is channeled into radical trapping, radical‐polar crossover, or radical ligand transfer, unifying hydroamination, hydroazidation, hydroamidation, and remote
Arman Khosravi, Ming‐Yu Ngai
wiley   +2 more sources

A logic of nonmonotone inductive definitions [PDF]

open access: yesACM Transactions on Computational Logic, 2008
Well-known principles of induction include monotone induction and different sorts of nonmonotone induction such as inflationary induction, induction over well-founded sets and iterated induction. In this work, we define a logic formalizing induction over well-founded sets and monotone and iterated induction.
Denecker, Marc, Ternovska, Eugenia
openaire   +2 more sources

Relevance-driven evaluation of modular nonmonotonic logic programs [PDF]

open access: yes, 2009
. Modular nonmonotonic logic programs (MLPs) under the answer-set semantics have been recently introduced as an ASP formalism in which modules can receive context-dependent input from other modules, while allowing (mutually) recursive module calls.
Krennwallner, Thomas   +7 more
core   +1 more source

Ideal reasoners don’t believe in zombies

open access: yesPrincipia: An International Journal of Epistemology, 2017
The negative zombie argument states that p&~q is ideally negatively conceivable and, therefore, possible, what would entail that physicalism is false (Chalmers, 2002, 2010}.
Danilo Fraga Dantas
doaj   +1 more source

Nonmonotonic Logics and Semantics

open access: yesJournal of Logic and Computation, 2001
Tarski gave a general semantics for deductive reasoning: a formula a may be deduced from a set A of formulas iff a holds in all models in which each of the elements of A holds. A more liberal semantics has been considered: a formula a may be deduced from a set A of formulas iff a holds in all of the "preferred" models in which all the elements of A ...
openaire   +4 more sources

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