let n be non zero Nat; for f being PartFunc of [:(CarProduct ((Seg n) --> RNS_Real)),RNS_Real:],RNS_Real
for g being PartFunc of [:(CarProduct ((Seg n) --> REAL)),REAL:],REAL
for p being Element of CarProduct ((Seg n) --> REAL) st f is_continuous_on dom f & f = g holds
ProjPMap1 (|.g.|,p) is continuous
let f be PartFunc of [:(CarProduct ((Seg n) --> RNS_Real)),RNS_Real:],RNS_Real; for g being PartFunc of [:(CarProduct ((Seg n) --> REAL)),REAL:],REAL
for p being Element of CarProduct ((Seg n) --> REAL) st f is_continuous_on dom f & f = g holds
ProjPMap1 (|.g.|,p) is continuous
let g be PartFunc of [:(CarProduct ((Seg n) --> REAL)),REAL:],REAL; for p being Element of CarProduct ((Seg n) --> REAL) st f is_continuous_on dom f & f = g holds
ProjPMap1 (|.g.|,p) is continuous
let p be Element of CarProduct ((Seg n) --> REAL); ( f is_continuous_on dom f & f = g implies ProjPMap1 (|.g.|,p) is continuous )
assume that
A1:
f is_continuous_on dom f
and
A2:
f = g
; ProjPMap1 (|.g.|,p) is continuous
set Y = dom (ProjPMap1 (g,p));
(ProjPMap1 (g,p)) | (dom (ProjPMap1 (g,p))) is continuous
by A1, A2, Th14;
then
(abs (ProjPMap1 (g,p))) | (dom (ProjPMap1 (g,p))) is continuous
by FCONT_1:21;
hence
ProjPMap1 (|.g.|,p) is continuous
by MESFUN16:32; verum