let z be Element of REAL ; for f being PartFunc of [:[:RNS_Real,RNS_Real:],RNS_Real:],RNS_Real
for g being PartFunc of [:[:REAL,REAL:],REAL:],REAL
for Pf2 being PartFunc of [:RNS_Real,RNS_Real:],RNS_Real st f is_continuous_on dom f & f = g & Pf2 = ProjPMap2 (|.(R_EAL g).|,z) holds
Pf2 is_continuous_on dom Pf2
let f be PartFunc of [:[:RNS_Real,RNS_Real:],RNS_Real:],RNS_Real; for g being PartFunc of [:[:REAL,REAL:],REAL:],REAL
for Pf2 being PartFunc of [:RNS_Real,RNS_Real:],RNS_Real st f is_continuous_on dom f & f = g & Pf2 = ProjPMap2 (|.(R_EAL g).|,z) holds
Pf2 is_continuous_on dom Pf2
let g be PartFunc of [:[:REAL,REAL:],REAL:],REAL; for Pf2 being PartFunc of [:RNS_Real,RNS_Real:],RNS_Real st f is_continuous_on dom f & f = g & Pf2 = ProjPMap2 (|.(R_EAL g).|,z) holds
Pf2 is_continuous_on dom Pf2
let Pf2 be PartFunc of [:RNS_Real,RNS_Real:],RNS_Real; ( f is_continuous_on dom f & f = g & Pf2 = ProjPMap2 (|.(R_EAL g).|,z) implies Pf2 is_continuous_on dom Pf2 )
assume that
A1:
f is_continuous_on dom f
and
A2:
f = g
and
A3:
Pf2 = ProjPMap2 (|.(R_EAL g).|,z)
; Pf2 is_continuous_on dom Pf2
Pf2 = |.(R_EAL (ProjPMap2 (g,z))).|
by A3, MESFUN16:31;
then
Pf2 = R_EAL (abs (ProjPMap2 (g,z)))
by MESFUNC6:1;
then
Pf2 = R_EAL (ProjPMap2 (|.g.|,z))
by MESFUN16:32;
hence
Pf2 is_continuous_on dom Pf2
by A1, A2, Th14, MESFUNC5:def 7; verum