let y be Element of REAL ; for f being PartFunc of [:RNS_Real,RNS_Real:],RNS_Real
for g being PartFunc of [:REAL,REAL:],REAL
for p2 being PartFunc of REAL,REAL st f is_continuous_on dom f & f = g & p2 = ProjPMap2 (|.(R_EAL g).|,y) holds
p2 is continuous
let f be PartFunc of [:RNS_Real,RNS_Real:],RNS_Real; for g being PartFunc of [:REAL,REAL:],REAL
for p2 being PartFunc of REAL,REAL st f is_continuous_on dom f & f = g & p2 = ProjPMap2 (|.(R_EAL g).|,y) holds
p2 is continuous
let g be PartFunc of [:REAL,REAL:],REAL; for p2 being PartFunc of REAL,REAL st f is_continuous_on dom f & f = g & p2 = ProjPMap2 (|.(R_EAL g).|,y) holds
p2 is continuous
let p2 be PartFunc of REAL,REAL; ( f is_continuous_on dom f & f = g & p2 = ProjPMap2 (|.(R_EAL g).|,y) implies p2 is continuous )
assume that
A1:
f is_continuous_on dom f
and
A2:
f = g
and
A3:
p2 = ProjPMap2 (|.(R_EAL g).|,y)
; p2 is continuous
p2 = |.(R_EAL (ProjPMap2 (g,y))).|
by A3, Th31;
then
p2 = R_EAL (abs (ProjPMap2 (g,y)))
by MESFUNC6:1;
then
p2 = R_EAL (ProjPMap2 (|.g.|,y))
by Th32;
then
p2 = ProjPMap2 (|.g.|,y)
by MESFUNC5:def 7;
hence
p2 is continuous
by A1, A2, Th34; verum