let C, D be non empty set ; :: thesis: for f, f9 being Function of C,D
for F being BinOp of D
for u being UnOp of D st u is_distributive_wrt F holds
u * (F .: (f,f9)) = F .: ((u * f),(u * f9))
let f, f9 be Function of C,D; :: thesis: for F being BinOp of D
for u being UnOp of D st u is_distributive_wrt F holds
u * (F .: (f,f9)) = F .: ((u * f),(u * f9))
let F be BinOp of D; :: thesis: for u being UnOp of D st u is_distributive_wrt F holds
u * (F .: (f,f9)) = F .: ((u * f),(u * f9))
let u be UnOp of D; :: thesis: ( u is_distributive_wrt F implies u * (F .: (f,f9)) = F .: ((u * f),(u * f9)) )
assume for d1, d2 being Element of D holds u . (F . (d1,d2)) = F . ((u . d1),(u . d2)) ; :: according to BINOP_1:def 20 :: thesis: u * (F .: (f,f9)) = F .: ((u * f),(u * f9))
hence u * (F .: (f,f9)) = F .: ((u * f),(u * f9)) by Th38; :: thesis: verum