let p be FinSequence of REAL ; ( p = |[0,0,0]| implies F2M p = <*<*0*>,<*0*>,<*0*>*> )
assume
p = |[0,0,0]|
; F2M p = <*<*0*>,<*0*>,<*0*>*>
then
( len p = 3 & p . 1 = 0 & p . 2 = 0 & p . 3 = 0 )
by FINSEQ_1:45;
hence
F2M p = <*<*0*>,<*0*>,<*0*>*>
by DEF1; verum