let s, s9 be Complex_Sequence; :: thesis: ( s is convergent & s9 is convergent implies lim ((s + s9) *' ) = ((lim s) *' ) + ((lim s9) *' ) )
assume A1: ( s is convergent & s9 is convergent ) ; :: thesis: lim ((s + s9) *' ) = ((lim s) *' ) + ((lim s9) *' )
then s + s9 is convergent by Th13;
hence lim ((s + s9) *' ) = (lim (s + s9)) *' by Th12
.= ((lim s) + (lim s9)) *' by A1, Th14
.= ((lim s) *' ) + ((lim s9) *' ) by COMPLEX1:118 ;
:: thesis: verum