%0 Conference Paper
%A Baker, David
%D 2004
%F pittphilsci:1610
%K cosmological constant substantivalism relationism
%T Spacetime Substantivalism and Einstein's Cosmological Constant
%U http://philsci-archive.pitt.edu/1610/
%X I offer a novel argument for spacetime substantivalism: we should take the spacetime of general relativity to be a substance because of its active role in gravitational causation. As a clear example of this causal behavior I offer the cosmological constant, a term in the most general form of the Einstein field equations which causes free-floating objects to accelerate apart. This acceleration cannot, I claim, be causally explained except by reference to spacetime itself.