theorem :: LOPBAN_1:15
for X, Y being RealLinearSpace holds RLSStruct(# (LinearOperators (X,Y)),(Zero_ ((LinearOperators (X,Y)),(RealVectSpace ( the carrier of X,Y)))),(Add_ ((LinearOperators (X,Y)),(RealVectSpace ( the carrier of X,Y)))),(Mult_ ((LinearOperators (X,Y)),(RealVectSpace ( the carrier of X,Y)))) #) is Subspace of RealVectSpace ( the carrier of X,Y) by Th14, RSSPACE:11;