Severance is separate compensation, regardless of whether notice is working or paid out: Court
Mattiassi v. Hathro Management Partnership 2011 CarswellOnt 1431 (Ont. Small Cl. Ct.)
See also our blog, Court Awards 26 Weeks Severance Pay In Addition to 54 Weeks of Working Notice Already Provided and our other published article 26 weeks severance added to 54 weeks working notice in Canadian Employment Law Today.