theorem :: LOPBAN_1:23
for X, Y being RealNormSpace holds RLSStruct(# (BoundedLinearOperators (X,Y)),(Zero_ ((BoundedLinearOperators (X,Y)),(R_VectorSpace_of_LinearOperators (X,Y)))),(Add_ ((BoundedLinearOperators (X,Y)),(R_VectorSpace_of_LinearOperators (X,Y)))),(Mult_ ((BoundedLinearOperators (X,Y)),(R_VectorSpace_of_LinearOperators (X,Y)))) #) is Subspace of R_VectorSpace_of_LinearOperators (X,Y) by Th22, RSSPACE:11;