Linearity of B-S Equation

1.



The part that says if V(t) satisfies the B-S Equation, then so does cV(t) doesn't seem to be true.



Does he mean "if V .... then cV? Because V(t) is theta is his notation?



2.



For V(t) = X(t) + Y(t), wouldn't it be better to say V = X + Y?

Linearity of B-S Equation