theorem Th13: :: MFOLD_2:13

for x1, x2 being FinSequence of REAL
for i being Element of NAT st i in dom (mlt (x1,x2)) holds
( (mlt (x1,x2)) . i = (x1 /. i) * (x2 /. i) & (mlt (x1,x2)) /. i = (x1 /. i) * (x2 /. i) )