theorem Th26: :: MATRLIN:26

for k, m, n being Nat
for D being non empty set
for M1 being Matrix of n,k,D
for M2 being Matrix of m,k,D st width M1 = width M2 holds
for i being Nat st i in Seg (width M1) holds
Col ((M1 ^ M2),i) = (Col (M1,i)) ^ (Col (M2,i))