Term_sub Case m xi n s Frozen m Sum_sub xi s n s Frozen m Sum_constant Left n s Term_sub m s Frozen m Sum_constant Right n s Term_sub n s Frozen m Sum_term_var xi n s Case Term_sub m s xi Term_sub n s Term_sub Term_app m n s Term_app Term_sub m s Term_sub n s Term_sub Term_pair m n s Term_pair Term_sub m s Term_sub n s Term_sub Term_inl m s Term_inl Term_sub m s Term_sub Term_inr m s Term_inr Term_sub m s Term_sub Term_var x Id Term_var x Term_sub Term_var x Cons_usual y m s m Term_sub Term_var x Cons_usual y m s Term_sub Term_var x s Term_sub Term_var x Cons_sum xi k s Term_sub Term_var x s Term_sub Term_sub m s t Term_sub m Concat s t Sum_sub xi Id Sum_term_var xi Sum_sub xi Cons_sum psi k s Sum_constant k Sum_sub xi Cons_sum psi k s Sum_sub xi s Sum_sub xi Cons_usual y m s Sum_sub xi s Concat Concat s t u Concat s Concat t u Concat Cons_usual x m s t Cons_usual x Term_sub m t Concat s t Concat Cons_sum xi k s t Cons_sum xi k Concat s t Concat Id s s 2.2 Term_sub Term_pair m n s Term_sub m s Term_sub Term_var x Cons_usual y m s Term_sub Term_var x s Concat Cons_usual x m s t Term_sub m t Term_sub Term_inl m s Term_sub m s Term_sub Term_app m n s Term_sub n s Concat Concat s t u Concat t u Sum_sub xi Cons_usual y m s Sum_sub xi s Concat Cons_usual x m s t Concat s t Frozen m Sum_term_var xi n s Term_sub m s Term_sub Term_var x Cons_sum xi k s Term_sub Term_var x s Term_sub Term_app m n s Term_sub m s Term_sub Term_sub m s t Concat s t Concat Concat s t u Concat s Concat t u Term_sub Case m xi n s Frozen m Sum_sub xi s n s Term_sub Term_inr m s Term_sub m s Frozen m Sum_term_var xi n s Term_sub n s Frozen m Sum_constant Right n s Term_sub n s Term_sub Term_pair m n s Term_sub n s Frozen m Sum_constant Left n s Term_sub m s Concat Cons_sum xi k s t Concat s t Sum_sub xi Cons_sum psi k s Sum_sub xi s Term_sub Term_sub m s t Term_sub m Concat s t Term_sub Case m xi n s Sum_sub xi s true Term_sub Term_sub m s t Term_sub m Concat s t Concat Cons_usual x m s t Concat s t Concat Cons_sum xi k s t Concat s t Frozen m Sum_constant Left n s Term_sub m s Concat Concat s t u Concat t u Term_sub Term_pair m n s Term_sub n s Frozen m Sum_constant Right n s Term_sub n s Frozen m Sum_term_var xi n s Term_sub n s Term_sub Term_app m n s Term_sub n s Term_sub Term_inl m s Term_sub m s Concat Cons_usual x m s t Term_sub m t Term_sub Term_inr m s Term_sub m s Term_sub Case m xi n s Frozen m Sum_sub xi s n s Concat Concat s t u Concat s Concat t u Term_sub Term_sub m s t Concat s t Term_sub Term_app m n s Term_sub m s Term_sub Term_pair m n s Term_sub m s Frozen m Sum_term_var xi n s Term_sub m s true Cons_sum 3 3 1 Left 0 1 Sum_term_var 1 1 Concat 2 1 0 Case 3 1 2 3 2 Term_inr 1 1 8856 Sum_sub 2 0 Sum_constant 1 1 Sum_sub 2 1 Right 0 1 Cons_usual 3 2 3 11798 Term_var 1 9508 Id 0 32286 Term_sub 2 1 2 1 Frozen 4 0 Frozen 4 1 2 3 0 Term_app 2 1 2 10451 Term_inl 1 1 30613 Term_pair 2 1 2 5854 Term_sub 2 1 0 Concat 2 1 2 28102 Sum_sub xi Cons_sum psi k s Sum_constant k Sum_sub xi Cons_sum psi k s Sum_sub xi s Sum_sub xi Cons_usual y m s Sum_sub xi s Sum_sub xi Id Sum_term_var xi Term_sub Term_var x Cons_usual y m s Term_sub Term_var x s Term_sub Term_var x Cons_sum xi k s Term_sub Term_var x s true Cons_sum 3 3 1 Left 0 1 Sum_term_var 1 1 Concat 2 0 Case 3 1 2 3 13297 Term_inr 1 1 31205 Sum_sub 2 0 Sum_constant 1 1 Sum_sub 2 1 Right 0 1 Cons_usual 3 3 11798 Term_var 1 46441 Id 0 1 Term_sub 2 1 2 2 Frozen 4 2 0 Frozen 4 2 0 Term_app 2 2 22105 Term_inl 1 1 1 Term_pair 2 1 2 30490 Term_sub 2 2 0 Concat 2 1 2 3 Concat Concat s t u Concat s Concat t u Sum_sub xi Cons_sum psi k s Sum_constant k Sum_sub xi Cons_sum psi k s Sum_sub xi s Concat Id s s Concat Cons_usual x m s t Cons_usual x Term_sub m t Concat s t Sum_sub xi Cons_usual y m s Sum_sub xi s Concat Cons_sum xi k s t Cons_sum xi k Concat s t Sum_sub xi Id Sum_term_var xi Term_sub Case m xi n s Sum_sub xi s false Sum_sub xi Cons_sum psi k s Sum_sub xi s Sum_sub xi Cons_usual y m s Sum_sub xi s true Cons_sum 3 3 1 Left 0 1 Sum_term_var 1 1 Concat 2 0 Case 3 1 2 3 48178 Term_inr 1 1 31205 Sum_sub 2 2 0 Sum_constant 1 1 Sum_sub 2 1 Right 0 1 Cons_usual 3 3 11798 Term_var 1 1 Id 0 1 Term_sub 2 1 2 2 Frozen 4 2 0 Frozen 4 2 0 Term_app 2 2 1 Term_inl 1 1 1 Term_pair 2 1 2 15208 Term_sub 2 2 0 Concat 2 1 2 3 Concat Concat s t u Concat s Concat t u Sum_sub xi Cons_sum psi k s Sum_constant k Sum_sub xi Cons_sum psi k s Sum_sub xi s Concat Id s s Concat Cons_usual x m s t Cons_usual x Term_sub m t Concat s t Sum_sub xi Cons_usual y m s Sum_sub xi s Concat Cons_sum xi k s t Cons_sum xi k Concat s t Sum_sub xi Id Sum_term_var xi NaTT certifiable-1.6