Section PRESERVATION.
Variable prog: Mach.program.
Variable tprog: Asm.program.
Hypothesis TRANSF: match_prog prog tprog.
Let ge := Genv.globalenv prog.
Let tge := Genv.globalenv tprog.
Proof (Genv.find_symbol_match TRANSF).

Lemma senv_preserved:
Senv.equiv ge tge.