Results 131 to 140 of about 278 (158)

On Fuzzy Sheffer Stroke Operation

2018
The generalization of the classical logical connectives to the fuzzy logic framework has been one of the main research lines since the introduction of fuzzy logic. Although many classical logical connectives have been already generalized, the Sheffer stroke operation has received scant attention.
Piotr Helbin, Wanda Niemyska, Pedro Berruezo, Sebastia Massanet, Daniel Ruiz-Aguilera, Michał Baczyński   +5 more
openaire   +1 more source

Study Groupoids by Sheffer stroke

Asian-European Journal of Mathematics
In this study, we study groupoids by Sheffer stroke. By defining subgroupoids and ideals of a groupoid with Sheffer stroke, it is proved that every ideal of a groupoid with Sheffer stroke is a subgroupoid but the converse is generally not true. Also, a congruence relation is described on the groupoid by means of ideals, and a quotient groupoid with ...
Tugce Katican, Tahsin Oner, Ahmet Hamal, Arsham Borumand Saeid   +3 more
openaire   +1 more source

Intuitionistic fuzzy filters in Sheffer stroke Hilbert algebras

Summary: Using the Atanassov's intuitionistic fuzzy set, the concept of intuitionistic fuzzy deductive system and intuitionistic fuzzy filter in Sheffer stroke Hilbert algebras is introduced, several properties are investigated. The conditions under which an intuitionistic fuzzy set can be an intuitionistic fuzzy filter are explored, and ...
Oner, Tahsin, Saeid, Arsham Borumand, Jun, Young Bae   +2 more
openaire   +1 more source

SHEFFER’S STROKE: A STUDY IN PROOF-THEORETIC HARMONY

DANISH YEARBOOK OF PHILOSOPHY, 1999
In order to explicate Gentzen’s famous remark that the introduction-rules for logical constants give their meaning, the elimination-rules being simply consequences of the meaning so given, we develop natural deduction rules for Sheffer’s stroke, alternative denial. The first system turns out to lack Double Negation. Strengthening the introduction-rules
openaire   +1 more source

Heart Disease and Stroke Statistics—2021 Update

Circulation, 2021
Salim S Virani, Alvaro Alonso, Hugo J Aparicio   +2 more
exaly  

Global, regional, and national burden of stroke and its risk factors, 1990–2019: a systematic analysis for the Global Burden of Disease Study 2019

Lancet Neurology, The, 2021
Valery L Feigin, Mohsen Abbasi-Kangevari, Foad Abd-Allah   +2 more
exaly  

Heart Disease and Stroke Statistics—2022 Update: A Report From the American Heart Association

Circulation, 2022
Zaid I Almarzooq, Alvaro Alonso, Amelia K Boehme   +2 more
exaly  

Heart Disease and Stroke Statistics—2020 Update: A Report From the American Heart Association

Circulation, 2020
Salim S Virani, Alvaro Alonso, Emelia J Benjamin   +2 more
exaly  

Stroke genetics informs drug discovery and risk prediction across ancestries

Nature, 2022
Aniket Mishra, Tsuyoshi Hachiya, Shinichi Namba   +2 more
exaly  

Preventing Cancer, Cardiovascular Disease, and Diabetes: A Common Agenda for the American Cancer Society, the American Diabetes Association, and the American Heart Association

Ca-A Cancer Journal for Clinicians, 2004
Robert A Smith
exaly