El Lissitzky, A Proun, c.1925. Commenting on Proun in 1921, Lissitzky stated, "We brought the canvas into circles . . . and while we turn, we raise ourselves into the space.". Gjenskrev Malevich Suprematisme ved å inkorporere relativitet. Han var spesielt influert av måten tre romdimensjoner var kombinert med tid i en firedimensjonal rom-tid, slik Minkowski hadde demonstrert i 1907.
Proun, ca 1922-23 gouache on paper. El lissitzky (1890-1941) was a Russian artist, designer, photographer, typographer, polemicist and architect who designed many exhibitions and propaganda for the Soviet Union in the early 20th century. He was an important figure of the Russian avant garde, helping develop suprematism with his mentor, Kazimir Malevich.