(*Lenb: moved alloc_juicy_variables, juicy_mem_alloc_core, and alloc_juicy_variables_e here from to veric/juicy_mem_ops.v*)

Lemma resource_decay_funassert:
forall G rho b w w',
necR (core w) (core w') ->
resource_decay b w w' ->
app_pred (funassert G rho) w ->
app_pred (funassert G rho) w'.