let _, metasenv, _, _ = proof in
let _, context, ty = CicUtil.lookup_meta goal metasenv in
let index, major = PEH.lookup_type metasenv context hyp in
let _, metasenv, _, _ = proof in
let _, context, ty = CicUtil.lookup_meta goal metasenv in
let index, major = PEH.lookup_type metasenv context hyp in