Quantum Logic is a very interesting and powerful answer to the problem of Quantum Mechanics foundations. Nevertheless this approach is usually developed in a non-relativistic framework. Is it still valid in a relativistic one? Can one talk about Yes/No experiments, elementary propositions lattice and so on also in the context of Quantum Field Theory?
I did not learn the quantum theory on a relativistic view. It's true that it's a hard topic to understand thats why it may look so relative, but as I was told it isn't, we just don't have all the informations we need about it. You can work on yes/no experiments. In some books writes that light behaves like a wave AND like a particle, but in fact wave is a feature of the particle, it depends how it is manifested but it can't be 2 things at once. So only the theories of scientists about quantum mechanics are relative, some vary a lot.