Je Tichého logika logikou? (O vztahu logické analýzy a dedukce)

Title in English Is Tichý's logic a logic? On the relation of logical analysis and deduction
Authors

RACLAVSKÝ Jiří

Year of publication 2012
Type Article in Periodical
Magazine / Source Filosofický časopis
MU Faculty or unit

Faculty of Arts

Citation
Field Philosophy and religion
Keywords Tichý; transparent intensional logic; entailment; deduction; logical analysis
Description It is sometimes objected that Tichý's logic is not logic because it underestimates deduction – providing only logical analysis of expressions. I argue that the opinion is wrong. First of all, detection of valid arguments (which are formulated in a language) needs logical analysis ascertaining which semantical entities, Tichý's constructions, are involved. Entailment is defined as an extralinguistic affair relating those constructions. Validity of arguments (composed of propositional constructions) stems from properties of constructions. Such properties are displayed by derivation rules of Tichý's system of deduction.
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