Rule of Distribution/Disjunction Distributes over Conjunction/Left Distributive/Formulation 2

Theorem
The disjunction operator is left distributive over the conjunction operator:
 * $\vdash \left({p \lor \left({q \land r}\right)}\right) \iff \left({\left({p \lor q}\right) \land \left({p \lor r}\right)}\right)$