theorem :: TREAL_1:9

for a, b being Real st a <= b holds
for t1, t2 being Point of (Closed-Interval-TSpace (a,b)) holds
( (L[01] (t1,t2)) . ((#) (0,1)) = t1 & (L[01] (t1,t2)) . ((0,1) (#)) = t2 )