It has occurred to me that there are a number of interesting parallels, and possible points of productive synthesis, between Henri Lefebvre and Alfred Sohn-Rethel.
In the first place, it is interesting to note that Lefebvre and Sohn-Rethel both conceived of projects in their youths, in the 1920s and 1930s, that they took up, reformulated and revised for the remainder of their lives. Moreover, these respective projects — the critique of everyday life and intellectual and manual labour — can both be said to conceive of capitalist society as characterized by a number of divisions. Finally, each thinker can also be said to have attempted to substantiate and embody these divisions in the realm of lived experience on the basis of theories of abstraction. This raises the question if Lefebvre’s notion of ‘concrete abstraction’, which focused on how abstraction was embodied in the lived experience of everyday life, and Sohn-Rethel’s idea of real abstraction, which focused on how conceptual abstraction was derived from the former in addition to the separation of head and hand, might be brought together; possibly providing Lefebvre with a more rigorous account of conceptuality and Sohn-Rethel with the dimensions of how conceptuality and division exist in everyday life.
These similarities also raise the possibilities of more technical comparisons of how they conceived of their theories of abstraction on a Marxian basis as well as looking at their respective Marxist uses of Heidegger.