I know that a Boolean lattice must be distributive.

But what with these lattices? Are these distributive?

$\hskip0.7in$![enter image description here][2]


How to recognize which lattices are distributive or not only by looking on their diagrams? Is it even possible?


  [1]: http://iete-elan.ac.in/SolQP/ac_10_typs_08_files/image160.jpg
  [2]: https://i.sstatic.net/RzYO1.jpg