Thm* as:(Label Term) List, A:ioa{i:l}(), de:sig(), x:Label, t:SimpleType, k:Label. single_valued_decls(A.ds)  tc_ioa(A;de)  ( i: . i < ||as||  2of(as[i]) smts_eff(action_effect(k;A.eff;A.frame);1of(as[i])))  mk_dec(x, t) A.ds  t term_types(A.ds;dec_lookup(A.da;k);de;apply_alist(as;x;x)) | [tc_ioa_lemma] |