By Jean-Yves Béziau
The speculation of oppositions according to Aristotelian foundations of common sense has been pictured in a outstanding sq. diagram which are understood and utilized in lots of alternative ways having repercussions in a variety of fields: epistemology, linguistics, arithmetic, sociology, physics. The sq. is usually generalized in different two-dimensional or multi-dimensional gadgets extending in breadth and intensity the unique Aristotelian thought. The sq. of competition from its starting place in antiquity to the current day keeps to exert a profound impression at the improvement of deductive good judgment. in view that 10 years there's a new turning out to be curiosity for the sq. as a result of contemporary discoveries and demanding interpretations. This publication offers a set of formerly unpublished papers by way of excessive point experts at the sq. from world wide.