On finite approximability of ?-intermediate logics

Studia Logica ◽  
1982 ◽  
Vol 41 (1) ◽  
pp. 67-73
Author(s):  
Wies?aw Dziobiak
1991 ◽  
Vol 32 (1) ◽  
pp. 148-150
Author(s):  
N. V. Ivanov

Author(s):  
Dov M. Gabbay ◽  
Nicola Olivetti
Keyword(s):  

2011 ◽  
Vol 51 (1-2) ◽  
pp. 71-92 ◽  
Author(s):  
Roy Dyckhoff ◽  
Sara Negri

2019 ◽  
Vol 13 (3) ◽  
pp. 483-502 ◽  
Author(s):  
ALEX CITKIN

AbstractPositive logics are $\{ \wedge , \vee , \to \}$-fragments of intermediate logics. It is clear that the positive fragment of $Int$ is not structurally complete. We give a description of all hereditarily structurally complete positive logics, while the question whether there is a structurally complete positive logic which is not hereditarily structurally complete, remains open.


2014 ◽  
Vol 53 (7-8) ◽  
pp. 779-808 ◽  
Author(s):  
Jeroen P. Goudsmit
Keyword(s):  

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