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The pragmatics of casual dialogue

100%
Warchala J.
Forum Lingwistyczne
|
2015
|
issue 2
97-119
EN
In this paper, the author presents the relationships of dialogue and then characterizes dialogue as a text. In dialogue’s characteristics, it is necessary to distinguish its units and both obligatory and optional elements. The author notes that a lively and spontaneous dialogue is dependent on various extralinguistic factors as well as accident.
2

Symmetric and dual paraconsistent logics

88%
Kamide N., Wansing H.
Logic and Logical Philosophy
|
2010
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vol. 19
|
issue 1-2
7–30
EN
Two new first-order paraconsistent logics with De Morgan-type negations and co-implication, called symmetric paraconsistent logic (SPL) and dual paraconsistent logic (DPL), are introduced as Gentzen-type sequent calculi. The logic SPL is symmetric in the sense that the rule of contraposition is admissible in cut-free SPL. By using this symmetry property, a simpler cut-free sequent calculus for SPL is obtained. The logic DPL is not symmetric, but it has the duality principle. Simple semantics for SPL and DPL are introduced, and the completeness theorems with respect to these semantics are proved. The cut-elimination theorems for SPL and DPL are proved in two ways: One is a syntactical way which is based on the embedding theorems of SPL and DPL into Gentzen’s LK, and the other is a semantical way which is based on the completeness theorems.
3
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Distribution Laws in Weak Positional Logics

51%
TKACZYK M.
Roczniki Filozoficzne
|
2018
|
vol. 66
|
issue 3
163-179
EN
A formal language is positional if it involves a positional connecitve, i.e. a connective of realization to relate formulas to points of a kind, like points of realization or points of relativization. The connective in focus in this paper is the connective R, first introduced by Jerzy Łoś. Formulas RtA involve a singular name t and a formula A to the effect that RtA is satisfied (true) relative to the position designated by t. In weak positional calculi no nested occurences of the connective are allowed. The distribution problem in weak positional logics is actually the problem of distributivity of the connective R over classical connectives, viz. the problem of relation between the occurences of classical connectives inside and outside the scope of the positional connective R.
PL
Logiki pozycyjne zawierają spójnik realizacji, który odnosi wyrażenie do pozycji ustalonego rodzaju, np. pozycji w czasie, przestrzeni, osób. W szczególności wyrażenie RtA należy odczytywać: w punkcie t jest tak, że A lub w podobny sposób. Najsłabszą logiką pozycyjną, w której spójnik R jest dystrybutywny względem wszystkich spójników klasycznego rachunku zdań, a w konsekwencji spójniki są booleowskie w każdym kontekście, jest system MR. Rozważane w tej pracy słabe logiki pozycyjne są systemami pośrednimi między kla­sycznym rachunkiem zdań a systemem MR. Niektóre, ale niekoniecznie wszystkie, spójniki w tych systemach mogą być booleowskie. Przedstawiam tutaj prosty algorytm budowy dowolnego adekwatnego systemu z rozważanego przedziału, wyznaczonego przez wybrane prawa dystrybucyjne. Przedstawiony tutaj algorytm łatwo rozszerza się na inne zestawy spójników.
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