WILLIAM ANASTASI explores the elementary constituents of art—the viewing space, the viewer, pictorial space and its framing, time, chance, decision, etc.—and thereby plays with artistic cognition in its various forms. This retrospective (and a concurrent exhibition with Dove Bradshaw and John Cage at the Museum of Contemporary Art in Roskilde, Denmark) shows his work, with its tenacious ambition to shed all metaphysical pretension, to involve a constant approximation to the real. The wall removal pieces from 1966, for example, where a section of the coating of the wall in the exhibition