What is the legal test for withdrawing a deemed admission?

In Hamilton v. Ahmed (1999), 38 C.P.C. (4th) 139 (B.C.S.C.), the court set out the principles to consider on an application to withdraw a deemed admission, which are: - whether there is a triable issue which should be determined on the merits; - all of the circumstances including whether the admission was made hastily, inadvertently, or without knowledge of the facts; - whether the fact admitted was within the knowledge of the party making the admissions; - whether the fact is true; - whether the fact is one of mixed fact and law; - whether withdrawal of the admission will prejudice anyone; and - whether there has been delay in making the application.