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Remarks on Joseph Maria Bocheński’s Conception of Logic

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Czarnecka-Rej B.

Filozofia Nauki

2017

vol. 25

issue 1

91-108

The aim of the article is to analyze the main theses advanced by Józef M. Bocheński in the field of philosophy of logic, putting them in the context of contemporary discussions. Bocheński attempted to justify important theorems concerning, inter alia, the status of logic, its origin, development, subject, and functions. He also identified the roots and kinds of superstitions in logic, and dealt with the issue of multiplicity and competitiveness of logical systems.

Applicability of Many-valued Logics

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Czarnecka-Rej B.

Filozofia Nauki

2007

vol. 15

issue 2

75-93

The paper deals with the question of the applicability of systems of many-valued logics. Those systems are claimed to be applicable in many local fields, e.g.: future contingents, semantic paradoxes, vagueness, meaninglessness, sense without denotation, undecidable sentences, quantum mechanics, cybernetics, mathematical machine theory. It is claimed that the many-valued logic does not need accepting any additional truth-values apart from classical 'true' and 'false'. In other words, it does not need rejecting the rule of bivalence. Intermediate values are most often understood as epistemic variants of classical truth-values, the assignment of classical truth-value to non-classical bearers, or as the lack of classical truth-value. Thus, the many-valued logic only apparently constitutes a threat for the classical logic.

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2 Filozofia Nauki

2 Czarnecka-Rej B.

1 2018

1 2007

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Remarks on Joseph Maria Bocheński’s Conception of Logic

Applicability of Many-valued Logics