% Mizar problem: t30_orders_1,orders_1,488,47 
fof(t30_orders_1, conjecture,  (! [A] :  (v1_relat_1(A) =>  (! [B] :  (r2_orders_1(A, B) => r1_orders_1(A, B)) ) ) ) ).
fof(d7_orders_1, axiom,  (! [A] :  (v1_relat_1(A) =>  (! [B] :  (r1_orders_1(A, B) <=>  (r1_relat_2(A, B) & r8_relat_2(A, B)) ) ) ) ) ).
fof(d8_orders_1, axiom,  (! [A] :  (v1_relat_1(A) =>  (! [B] :  (r2_orders_1(A, B) <=>  (r1_relat_2(A, B) &  (r8_relat_2(A, B) & r4_relat_2(A, B)) ) ) ) ) ) ).
