Say's law stated in terms of general equilibrium theory? Say's law is roughly that "an increase in aggregate supply generates an equal increase in aggregate demand".

Can this law be stated, or derived from, a model of general equilibrium?

EDIT: what if we assume a dynamic economy? I.e. where saving is possible.
How about Walras's law?


  Walras's law is a principle in general equilibrium theory asserting that budget constraints imply that the values of excess demand (or, conversely, excess market supplies) must sum to zero.