theorem Th13: :: JGRAPH_6:13

for X being non empty TopSpace
for n being Nat
for p1, p2 being Point of (TOP-REAL n)
for f1, f2 being Function of X,R^1 st f1 is continuous & f2 is continuous holds
ex g being Function of X,(TOP-REAL n) st
( ( for r being Point of X holds g . r = ((f1 . r) * p1) + ((f2 . r) * p2) ) & g is continuous )