Finite Basis Theorem for Filter-distributive Protoalgebraic Deductive Systems and Strict Universal Horn Classes

We show that a finitely generated protoalgebraic strict universal Horn class that is filter-distributive is finitely based. Equivalently, every protoalgebraic and filter-distributive multidimensional deductive system determined by a finite set of finite matrices can be presented by finitely many axioms and rules.     

Correspondence Results for Relational Proof Systems with Application to the Lambek Calculus

We present a general framework for proof systems for relational theories. We discuss principles of the construction of deduction rules and correspondences reflecting relationships between semantics of relational logics and the rules of the respective proof systems. We illustrate the methods developed in the paper with examples relevant for the Lambek calculus and some of its extensions.     

Contemporary ‘people from hideouts’ and the problem of the lack of social involvement

Studies in East European Thought - The aim of this paper is to present Tischner’s concept of ‘people from hideouts’ in the context of contemporary problems of lack of social...     

Social representations of the individual: a post-Communist perspective

Social representations of the individual are examined in three post-Communist Central European nations, i.e. the Czech Republic, Slovakia and Hungary, and in three West European nations, i.e. Scotland, England and France. All six nations share a common European history since the Renaissance and Humanism, based on such values as freedom, agency, individual rights and individual responsibility. Many of these values were rejected by the Communist regimes in which people lived for 40 years. Extreme forms of individualism developed in certain West European nations during the same period. In view of these historical events we have asked the following questions: Do people in the post-Communist countries of Central Europe, after 40 years of totalitarian collectivism, still adhere to the values of the common European heritage? What is the meaning of ‘the individual’ today, in Western democracies and in Central European post-Communist nations? Which issues are important for the well-being of the individual and how do they relate to the political and economic circumstances of those individuals? The results show that the values of the common European heritage in Central Europe have not been destroyed and that factors relating to the well-being of the individual differ between the two parts of Europe. These data are discussed in terms of the political and economic situations in Central and Western Europe, the relationship between language and social representations and the structure of social representations. © 1998 John Wiley & Sons, Ltd.     

Truth and Consistency

This paper investigates relations between truth and consistency. The basic intuition is that truth implies consistency, but the reverse dependence fails. However, this simple account leads to some troubles, due to some metalogical results, in particular the Gödel-Malcev completeness theorem. Thus, a more advanced analysis is required. This is done by employing the concept of ω-consistency and ω-inconsistency. Both concepts motivate that the concept of the standard truth should be introduced as well. The results are illustrated by an interpretation of the well-known logical square and its generalization.     

Dedicated to Nation but Against Women? National Narcissism Predicts Support for Anti-Abortion Laws in Poland

The present research examines psychological concomitants of support for anti-abortion laws in Poland in the wake of the Constitutional Tribunal’s 2020 ruling restricting access to abortion in cases of fetal malformations. Results of two cross-sectional studies conducted on representative samples of Poles (Study 1, N?=?994 and Study 2, N?=?432) indicated that support for an almost total abortion ban was associated with national narcissism – a belief in the national in-group’s greatness that is contingent on its external validation. In both studies, the relationship between national narcissism and support for anti-abortion laws was mediated by hostile, but not benevolent, sexism. Study 2 additionally showed that this effect remained significant even when we accounted for other important variables, such as individual narcissism or prejudice towards people with Down syndrome. Overall, our results indicate that national narcissism may play an important role in shaping anti-abortion attitudes.

     

Suicidal Ideation of Psychiatrically Hospitalized Adolescents has One-Year Predictive Validity for Suicide Attempts in Girls Only

Clinicians commonly incorporate adolescents’ self-reported suicidal ideation into formulations regarding adolescents’ risk for suicide. Data are limited, however, regarding the extent to which adolescent boys’ and girls’ reports of suicidal ideation have clinically significant predictive validity in terms of subsequent suicidal behavior. This study examined psychiatrically hospitalized adolescent boys’ and girls’ self-reported suicidal ideation as a predictor of suicide attempts during the first year following hospitalization. A total of 354 adolescents (97 boys; 257 girls; ages 13–17 years) hospitalized for acute suicide risk were evaluated at the time of hospitalization as well as 3, 6, and 12 months later. Study measures included the Suicidal Ideation Questionnaire-Junior, Multidimensional Anxiety Scale for Children, Children’s Depression Rating Scale-Revised, Beck Hopelessness Scale, Youth Self-Report, and Personal Experiences Screen Questionnaire. The main study outcome was presence and number of suicide attempt(s) in the year after hospitalization, measured by the Diagnostic Interview Schedule for Children. Results indicated a significant interaction between suicidal ideation, assessed during first week of hospitalization, and gender for the prediction of subsequent suicide attempts. Suicidal ideation was a significant predictor of subsequent suicide attempts for girls, but not boys. Baseline history of multiple suicide attempts was a significant predictor of subsequent suicide attempts across genders. Results support the importance of empirically validating suicide risk assessment strategies separately for adolescent boys and girls. Among adolescent boys who have been hospitalized due to acute suicide risk, low levels of self-reported suicidal ideation may not be indicative of low risk for suicidal behavior following hospitalization.     

Quality of Life and Optimism in Patients with Morphea

Despite extensive knowledge about quality of life of people suffering from dermatological diseases, data on patients with morphea are scarce. The aim of our study was to compare the quality of life of healthy controls and morphea patients, as well as to determine the correlation of this variable with the level of dispositional optimism. The study included 47 patients with morphea and 47 healthy controls, matched for gender and age. Cantril’s Ladder and Life Orientation Test-Revised were used to assess the levels of life satisfaction and dispositional optimism, respectively. LoSSI was used for the objective assessment. The anticipated level of life quality and the level of dispositional optimism were statistically significantly lower in morphea patients (p?=?0.032 and p?=?0.014, respectively) when compared to controls. There were no differences in the assessment of current (p?=?0.168) and past (p?=?0.318) levels of life quality. Also, we proved that type of morphea did not differentiate the current (p?=?0.175), past (p?=?0.620) and future (p?=?0.356) assessment of the quality of life. In the group of morphea patients there was a statistically significant correlation between the level of dispositional optimism and current (p?=?0.002, r?=?0.43), as well as anticipated (p?r?=?0.57) levels of life quality. Current level of life quality of healthy controls and morphea patients is comparable, whereas the latter anticipate their future life situation to be significantly worse than the former. Higher level of life satisfaction correlates with higher level of optimism.     

No Matrix Term-Equivalent to Wroński's 3-element Matrix is Finitely Based

Motivated by a question of W. Rautenberg, we prove that any matrix that is term-equivalent to the well-known nonfinitely based matrix of A. Wroski is itself also nonfinitely based.     

Sergei Hessen, Neo-Kantian Dedicated to Professor Andrzej Walicki

This paper commemorates thepresentation of the honorary doctorate, in May2001 by the University of ód, toProfessor Andrzej Walicki. On this occasion,the Honorary Graduate delivered a lecturedevoted to his first philosophy teacher –Sergej Iosifovich Hessen, a prominent RussianNeo-Kantian philosopher and a liberal inmatters social and political. I try to analyzethe main features of Hessen's philosophicalneo-Kantianism, in particular the inevitabilityof a choice between the absolute and therelative both in epistemology and in ethics inthe context of contemporary philosophy.