) ▁- ▁Cl int ▁Bened ict ▁( 1 9 2 6 ), ▁Frank ▁McC ool ▁( 1 9 4 5 ), ▁Martin ▁Bro de ur ▁( 2 0 0 3 ) ▁ ▁See ▁also ▁▁ ▁List ▁of ▁Stanley ▁Cup ▁champions ▁ ▁List ▁of ▁Stanley ▁Cup ▁challenge ▁games ▁ ▁List ▁of ▁N HL ▁franch ise ▁post - season ▁dr ought s ▁ ▁Notes ▁ ▁References ▁ ▁Cit ations ▁ ▁S ources ▁ ▁External ▁links ▁▁▁ ▁Final s ▁Category : An n ual ▁sport ing ▁events ▁in ▁the ▁United ▁States <0x0A> </s> ▁Many ▁programming ▁language ▁type ▁systems ▁support ▁sub ty ping . ▁Var iance ▁refers ▁to ▁how ▁sub ty ping ▁between ▁more ▁complex ▁types ▁rel ates ▁to ▁sub ty ping ▁between ▁their ▁components . ▁ ▁For ▁instance , ▁if ▁the ▁type ▁ ▁is ▁a ▁sub type ▁of ▁, ▁then ▁an ▁expression ▁of ▁type ▁ ▁should ▁be ▁subst it utable ▁wherever ▁an ▁expression ▁of ▁type ▁ ▁is ▁used . ▁▁ ▁How ▁does ▁a ▁list ▁of ▁s ▁compare ▁to ▁a ▁list ▁of ▁s ? ▁ ▁How ▁does ▁a ▁function ▁that ▁returns ▁ ▁compare ▁to ▁a ▁function ▁that ▁returns ▁? ▁ ▁How ▁does ▁an ▁instance ▁of ▁ ▁and ▁an ▁instance ▁of ▁ ▁compare ▁in ▁a ▁list ▁of ▁s ? ▁ ▁Depending ▁on ▁the ▁variance ▁of ▁the ▁type ▁constructor , ▁the ▁sub ty ping ▁relation ▁of ▁the ▁simple ▁types ▁may ▁be ▁either ▁preserved , ▁revers ed , ▁or ▁ignored ▁for ▁the ▁respective ▁complex ▁types . ▁In ▁the ▁O C aml ▁programming ▁language , ▁for ▁example , ▁" list ▁of