(* legacy ML bindings *)
val less_sprod_def = thm "less_Sprod_def";
val spair_def = thm "spair_def";
val sfst_def = thm "sfst_def";
val ssnd_def = thm "ssnd_def";
val ssplit_def = thm "ssplit_def";
val inst_sprod_pcpo2 = thm "inst_sprod_pcpo2";
val spair_strict = thm "spair_strict";
val spair_strict1 = thm "spair_strict1";
val spair_strict2 = thm "spair_strict2";
val spair_strict_rev = thm "spair_strict_rev";
val spair_defined_rev = thm "spair_defined_rev";
val spair_defined = thm "spair_defined";
val spair_eq = thm "spair_eq";
val spair_inject = thm "spair_inject";
val Exh_Sprod2 = thm "Exh_Sprod2";
val sprodE = thm "sprodE";
val sfst_strict = thm "sfst_strict";
val ssnd_strict = thm "ssnd_strict";
val sfst_spair = thm "sfst_spair";
val ssnd_spair = thm "ssnd_spair";
val sfst_defined = thm "sfst_defined";
val ssnd_defined = thm "ssnd_defined";
val surjective_pairing_Sprod2 = thm "surjective_pairing_Sprod2";
val less_sprod = thm "less_sprod";
val spair_less = thm "spair_less";
val ssplit1 = thm "ssplit1";
val ssplit2 = thm "ssplit2";
val ssplit3 = thm "ssplit3";