Section MATCH_TRACES_INV.
Variables ge1 ge2: Senv.t.
Hypothesis public_preserved:
forall id, Senv.public_symbol ge2 id = Senv.public_symbol ge1 id.

Lemma match_traces_preserved:
forall t1 t2, match_traces ge1 t1 t2 -> match_traces ge2 t1 t2.