% Mizar problem: t41_enumset1,enumset1,621,5 
fof(t41_enumset1, conjecture,  (! [A] :  (! [B] :  (! [C] :  (! [D] :  (! [E] :  (! [F] : k6_enumset1(A, A, A, B, C, D, E, F)=k4_enumset1(A, B, C, D, E, F)) ) ) ) ) ) ).
fof(dt_k4_enumset1, axiom, $true).
fof(dt_k5_enumset1, axiom, $true).
fof(dt_k6_enumset1, axiom, $true).
fof(t34_enumset1, axiom,  (! [A] :  (! [B] :  (! [C] :  (! [D] :  (! [E] :  (! [F] : k5_enumset1(A, A, B, C, D, E, F)=k4_enumset1(A, B, C, D, E, F)) ) ) ) ) ) ).
fof(t35_enumset1, axiom,  (! [A] :  (! [B] :  (! [C] :  (! [D] :  (! [E] :  (! [F] :  (! [G] : k6_enumset1(A, A, B, C, D, E, F, G)=k5_enumset1(A, B, C, D, E, F, G)) ) ) ) ) ) ) ).
