% Mizar problem: t19_yellow_5,yellow_5,300,5 
fof(t19_yellow_5, conjecture,  (! [A] :  ( ( ~ (v2_struct_0(A))  &  (v5_orders_2(A) &  (v1_yellow_0(A) & l1_orders_2(A)) ) )  =>  (! [B] :  (m1_subset_1(B, u1_struct_0(A)) =>  (r1_orders_2(A, B, k3_yellow_0(A)) => B=k3_yellow_0(A)) ) ) ) ) ).
fof(d3_yellow_0, axiom,  (! [A] :  (l1_orders_2(A) =>  (v5_orders_2(A) <=>  (! [B] :  (m1_subset_1(B, u1_struct_0(A)) =>  (! [C] :  (m1_subset_1(C, u1_struct_0(A)) =>  ( (r1_orders_2(A, B, C) & r1_orders_2(A, C, B))  => B=C) ) ) ) ) ) ) ) ).
fof(dt_k3_yellow_0, axiom,  (! [A] :  (l1_orders_2(A) => m1_subset_1(k3_yellow_0(A), u1_struct_0(A))) ) ).
fof(dt_l1_orders_2, axiom,  (! [A] :  (l1_orders_2(A) => l1_struct_0(A)) ) ).
fof(dt_l1_struct_0, axiom, $true).
fof(dt_m1_subset_1, axiom, $true).
fof(dt_u1_struct_0, axiom, $true).
fof(existence_l1_orders_2, axiom,  (? [A] : l1_orders_2(A)) ).
fof(existence_l1_struct_0, axiom,  (? [A] : l1_struct_0(A)) ).
fof(existence_m1_subset_1, axiom,  (! [A] :  (? [B] : m1_subset_1(B, A)) ) ).
fof(t44_yellow_0, axiom,  (! [A] :  ( ( ~ (v2_struct_0(A))  &  (v5_orders_2(A) &  (v1_yellow_0(A) & l1_orders_2(A)) ) )  =>  (! [B] :  (m1_subset_1(B, u1_struct_0(A)) => r1_orders_2(A, k3_yellow_0(A), B)) ) ) ) ).
