melangeau

Aquí tenemos una modela matemática para una reunión por Hans Freudenthal:

A meeting is an ordered set 
 consisting of

a bounded part  of Euclidean space;
a finite set , that of the participants;
two elements  and  of  called chairman and secretary;
a finite set , called the chairs;
a finite set , called the cups of coffee;
an element , called bell;
an injection  of  into ;
a mapping  of  into ;
an ordered set , the speeches;
a mapping  of  into  with the property that c belongs 
to the image of 

If  is a surjection, it is usual to say that everybody has 
had the floor.

Encontré lo anterior mientras estaba leyendo el libro "The Mathematical Experience" y pensaba que está bastante interesante compartir.