All equations hold. This is because we have the following result:
**Proposition.** For each distributive lattice $L$, there exists a set $X$ and an embedding $i : L \to \mathscr{P}(X)$ that preserves finite meets and joins.
This is a corollary of Stone's representation theorem for distributive lattices:
**Theorem.** For each distributive lattice $L$, there exists a (unique up to homeomorphism) topological space $\operatorname{Spec} L$ with the following properties:
* $\operatorname{Spec} L$ is quasicompact and sober.
* The set of quasicompact open subsets of $\operatorname{Spec} L$ is closed under finite intersections and is a basis for the topology of $\operatorname{Spec} L$.
* The lattice of quasicompact open subsets of $\operatorname{Spec} L$ is isomorphic to $L$.
In particular, there is a lattice embedding $L \to \mathscr{P}(\operatorname{Spec} L)$.