Fixpoint prog_funct' {F V} (l: list (ident * globdef F V)) : list (ident * F) :=
 match l with nil => nil | (i,Gfun f)::r => (i,f):: prog_funct' r | _::r => prog_funct' r
 end.Definition prog_funct {F} (p: program F) := prog_funct' (prog_defs p).

Lemma find_symbol_add_globals_nil: forall {F V} i g id p prog_pub, (Genv.find_symbol (Genv.add_globals (Genv.empty_genv F V prog_pub) ((i, g) :: nil)) id = Some p <-> (i = id /\ 1%positive = p)).