let X be RealUnitarySpace; for x, g being Point of X
for seq being sequence of X st seq is convergent & lim seq = g holds
( dist ((seq + x),(g + x)) is convergent & lim (dist ((seq + x),(g + x))) = 0 )
let x, g be Point of X; for seq being sequence of X st seq is convergent & lim seq = g holds
( dist ((seq + x),(g + x)) is convergent & lim (dist ((seq + x),(g + x))) = 0 )
let seq be sequence of X; ( seq is convergent & lim seq = g implies ( dist ((seq + x),(g + x)) is convergent & lim (dist ((seq + x),(g + x))) = 0 ) )
assume
( seq is convergent & lim seq = g )
; ( dist ((seq + x),(g + x)) is convergent & lim (dist ((seq + x),(g + x))) = 0 )
then
( seq + x is convergent & lim (seq + x) = g + x )
by Th7, Th17;
hence
( dist ((seq + x),(g + x)) is convergent & lim (dist ((seq + x),(g + x))) = 0 )
by Th24; verum