In terms of the notion of concept image of Vinner (Vinner & Hershkowitz, 1980), there is no conflict here. Within our mental structure we have both recognition structures that recognise, say, the perceptions of a physical object, such as a drawing of a triangle, and we also have connected sequences of mental actions that are triggered to carry out processes in time. The concept image of a procept uses the symbol to links to suitable processes and relationships in the cognitive structure. Thus, although we may not have anything in our mind which is like a physical object, we have symbols that we can manipulate as if they were mental objects.