% Mizar problem: t17_ordinal6,ordinal6,419,19 
fof(t17_ordinal6, conjecture,  (! [A] :  (v3_ordinal1(A) => k1_ordinal6(A)=A) ) ).
fof(dt_k2_ordinal1, axiom, $true).
fof(cc2_ordinal1, axiom,  (! [A] :  ( (v1_ordinal1(A) & v2_ordinal1(A))  => v3_ordinal1(A)) ) ).
fof(fc1_ordinal6, axiom,  (! [A] : v1_ordinal6(k2_ordinal1(A))) ).
fof(fc8_ordinal6, axiom,  (! [A] :  (v1_ordinal6(A) =>  (v1_relat_1(k1_wellord2(A)) & v2_wellord1(k1_wellord2(A))) ) ) ).
fof(rc1_ordinal1, axiom,  (? [A] :  (v1_ordinal1(A) & v2_ordinal1(A)) ) ).
fof(rc1_ordinal6, axiom,  (? [A] : v1_ordinal6(A)) ).
fof(dt_k1_ordinal6, axiom,  (! [A] : v3_ordinal1(k1_ordinal6(A))) ).
fof(dt_k1_wellord2, axiom,  (! [A] : v1_relat_1(k1_wellord2(A))) ).
fof(dt_k2_wellord2, axiom,  (! [A] :  (v1_relat_1(A) => v3_ordinal1(k2_wellord2(A))) ) ).
fof(cc1_ordinal1, axiom,  (! [A] :  (v3_ordinal1(A) =>  (v1_ordinal1(A) & v2_ordinal1(A)) ) ) ).
fof(cc1_ordinal6, axiom,  (! [A] :  (v3_ordinal1(A) => v1_ordinal6(A)) ) ).
fof(fc1_wellord2, axiom,  (! [A] :  (v1_relat_1(k1_wellord2(A)) & v1_relat_2(k1_wellord2(A))) ) ).
fof(fc2_wellord2, axiom,  (! [A] :  (v1_relat_1(k1_wellord2(A)) & v8_relat_2(k1_wellord2(A))) ) ).
fof(fc3_wellord2, axiom,  (! [A] :  (v1_relat_1(k1_wellord2(A)) & v4_relat_2(k1_wellord2(A))) ) ).
fof(fc4_wellord2, axiom,  (! [A] :  (v3_ordinal1(A) =>  (v1_relat_1(k1_wellord2(A)) & v6_relat_2(k1_wellord2(A))) ) ) ).
fof(fc5_wellord2, axiom,  (! [A] :  (v3_ordinal1(A) =>  (v1_relat_1(k1_wellord2(A)) & v1_wellord1(k1_wellord2(A))) ) ) ).
fof(rc2_ordinal1, axiom,  (? [A] : v3_ordinal1(A)) ).
fof(d4_ordinal6, axiom,  (! [A] : k1_ordinal6(A)=k2_wellord2(k1_wellord2(k2_ordinal1(A)))) ).
fof(d5_ordinal6, axiom,  (! [A] :  (v1_ordinal6(A) => k1_ordinal6(A)=k2_wellord2(k1_wellord2(A))) ) ).
fof(t88_orders_1, axiom,  (! [A] :  (v3_ordinal1(A) => k2_wellord2(k1_wellord2(A))=A) ) ).
