He believed himself to possess a set of basic analytical tools for operating upon a work of art.
The critic said with evident sarcasm that the display would no doubt "strike terror into the heart of the Anarchist" even though no better executed than "a boy operating upon snow or plastic mud".
The distinction of morpheme and morph (and the notion of allomorphs) was developed in order to make possible the description of the morphology and syntax of a language in terms of "arrangements" of items rather than in terms of "processes" operating upon more basic items.
However, as it is performed by human hand, operating upon miniscule vessels, for example, deep within the brain, is difficult.
The determination of the topological mobility requires combinatorial algorithms operating upon a graph representation of the kinematic constraints.
We are also aware within our consciousness of another activity operating upon our representations, namely of paying them attention (PP II: 266).
