Section EVAL_EXPR.
Variables e te: env.
Variables le tle: temp_env.
Variables m tm: mem.
Variable f: meminj.
Variable cenv: compilenv.
Variables lo hi tlo thi: block.
Hypothesis MATCH: match_envs f cenv e le m lo hi te tle tlo thi.
Hypothesis MEMINJ: Mem.inject f m tm.
Hypothesis GLOB: exists bound, match_globalenvs f bound.

Lemma typeof_simpl_expr:
forall a, typeof (simpl_expr cenv a) = typeof a.