A Note on Three Approaches to Connexivity

Ricardo Arturo NICOLÁS-FRANCISCO

Makale detayları

A Note on Three Approaches to Connexivity

Yazarlar:

Ricardo Arturo NICOLÁS-FRANCISCO

Yayıncı:

Istanbul University

Ana Başlıklar:

Felsefe

Dergi:

Archives of Philosophy 2019 Issue 51, pp.129-138

Belge Tipi:

Makale

Yayın Tarihi:

12/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000708861

Sıklık:

İki Yıllık

eISSN:

2667-7644

pISSN:

0378-2816

Özet:

 

In this paper I explore whether three different approaches to connexivity – namely, Lewis and Langford’s, Wansing’s and Egré and Politzer’s – can be non-trivially related. Lewis and Langford’s approach consists of the definition of the conditional in terms of consistency via the definition of possibility in terms of consistency and Lewis’ definition of the (strict) conditional in terms of possibility; Wansing’s approach is based on his definition of the falsity condition for the conditional as “if A is true then B is false”; Egré and Politzer’s approach relies on the modalization of the falsity condition for the conditional in its conditional form (A→◇~B). With this background in mind, I build upon Estrada-González’s work relating connexivism and possibilism, the thesis according to which everything is possible. Estrada-González’s work relates Lewis and Langford’s connexive approach with Nelson’s idea that every proposition is self-consistent. He does so using a fragment of LP augmented with a special conditional. This relation has resulted in the study and postulation of several truth-functional modalities, some of which have already been discussed elsewhere. I employ several truth-functional modalities to evaluate Egré and Politzer’s falsity conditions for the conditional. I show that in using Béziau’s truth-functional modality ◇B, definable in Estrada-González’s framework, one can retain in a single framework the three different approaches. More specifically, distinguishing the notion of logical equivalence from the notion of interderivability and these two from the notion of coimplication, it is possible to relate ~(A→B) and (A→◇~B) as interderivable schemas and in a valid biconditional. I also show some consequences of this for Béziau’s negative appraisal of three-valued truthfunctional modalities.

Makale detayları

A Note on Three Approaches to Connexivity

Yazarlar: Ricardo Arturo NICOLÁS-FRANCISCO

Yayıncı: Istanbul University

Ana Başlıklar: Felsefe

Dergi: Archives of Philosophy 2019 Issue 51, pp.129-138

Belge Tipi: Makale

Yayın Tarihi: 12/2019

Belge Dili: İngilizce

Document ID (Org No.): 2000708861

Sıklık: İki Yıllık

eISSN: 2667-7644

pISSN: 0378-2816

Sayı

Yazarlar:

Ricardo Arturo NICOLÁS-FRANCISCO

Yayıncı:

Istanbul University

Ana Başlıklar:

Felsefe

Dergi:

Archives of Philosophy 2019 Issue 51, pp.129-138

Belge Tipi:

Makale

Yayın Tarihi:

12/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000708861

Sıklık:

İki Yıllık

eISSN:

2667-7644

pISSN:

0378-2816