The two modes of spatial extension discussed by Hartshorne as follows may be nothing more than two (external and internal) perspectives on one mode. (religion-online.org)
This position will involve temporal as well as spatial extension.25 But though it occupies a temporal duration, it does not come into being by successively occupying the parts of this duration. (religion-online.org)
Avicenna characterized corporeal form as the tendency of prime matter to manifest dimensionality, which is to say spatial extension. (religion-online.org)