He creates sculptures in the unextended sense, without leaving the three dimensions of the three dimensional genre; he exposes his statements and his confutations within these frames. His works are not kinetic, do not change their shape or physical condition, are not variable, nor were they created for decay (or for a single viewpoint); they are made from solid matter. This solidity is sometimes eased and modulated by light (a reflecting polished metal surface).
In other words: the fourth dimension is not demonstrated by Zénó Kelemen, but it is represented within the three, leading us to its inference.