let x be Element of REAL ; :: thesis: for f being PartFunc of [:RNS_Real,RNS_Real:],RNS_Real
for g being PartFunc of [:REAL,REAL:],REAL
for Pg1 being PartFunc of REAL,REAL st f is_continuous_on dom f & f = g & Pg1 = ProjPMap1 ((R_EAL g),x) holds
Pg1 is continuous
let f be PartFunc of [:RNS_Real,RNS_Real:],RNS_Real; :: thesis: for g being PartFunc of [:REAL,REAL:],REAL
for Pg1 being PartFunc of REAL,REAL st f is_continuous_on dom f & f = g & Pg1 = ProjPMap1 ((R_EAL g),x) holds
Pg1 is continuous
let g be PartFunc of [:REAL,REAL:],REAL; :: thesis: for Pg1 being PartFunc of REAL,REAL st f is_continuous_on dom f & f = g & Pg1 = ProjPMap1 ((R_EAL g),x) holds
Pg1 is continuous
let Pg1 be PartFunc of REAL,REAL; :: thesis: ( f is_continuous_on dom f & f = g & Pg1 = ProjPMap1 ((R_EAL g),x) implies Pg1 is continuous )
assume that
A1: f is_continuous_on dom f and
A2: f = g and
A3: Pg1 = ProjPMap1 ((R_EAL g),x) ; :: thesis: Pg1 is continuous
Pg1 = R_EAL (ProjPMap1 (g,x)) by A3, Th31;
then Pg1 = ProjPMap1 (g,x) by MESFUNC5:def 7;
hence Pg1 is continuous by A1, A2, Th33; :: thesis: verum