1st World Congress

Montreux, Switzerland
June 1-3 2007




2nd World Congress

Corte, Corsica
June 17-20 2010


Two special issues of Logica Universalis: Square and Hexagon

The Square of Oppositon: a General Framework for Cognition

Around and Beyond the Square of Opposition

5th World Congress - Rapa Nui : Easter Island - November 11-15, 2016

New Dimensions of the Square of Oppositon

Special Issue of HPL - The Square of Opposition in Historical Perspectives


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