Use induction to prove the generalized Distributive laws.

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Prove that: $$\phi \vee (\psi_{1} \wedge ...\wedge \psi_{n}) = (\phi \vee \psi_{1})\wedge ... \wedge (\phi \vee \psi_{n}).$$

I think the induction may be the ordinary induction and not course of values induction, right?

thanks.