let D, D9, E be non empty set ; :: thesis: for d being Element of D
for F being Function of [:D,D9:],E
for T9 being Tuple of 0 ,D9 holds F [;] (d,T9) = <*> E
let d be Element of D; :: thesis: for F being Function of [:D,D9:],E
for T9 being Tuple of 0 ,D9 holds F [;] (d,T9) = <*> E
let F be Function of [:D,D9:],E; :: thesis: for T9 being Tuple of 0 ,D9 holds F [;] (d,T9) = <*> E
let T9 be Tuple of 0 ,D9; :: thesis: F [;] (d,T9) = <*> E
T9 = <*> D9 ;
hence F [;] (d,T9) = <*> E by FINSEQ_2:79; :: thesis: verum