Relational Algebra as non-Distributive Lattice
<|reference_start|>Relational Algebra as non-Distributive Lattice: We reduce the set of classic relational algebra operators to two binary operations: natural join and generalized union. We further demonstrate that this set of operators is relationally complete and honors lattice axioms.<|reference_end|>
@article{tropashko2005relational,
    title={Relational Algebra as non-Distributive Lattice},
    author={Vadim Tropashko},
    journal={arXiv preprint arXiv:cs/0501053},
    year={2005},
    archivePrefix={arXiv},
    eprint={cs/0501053},
    primaryClass={cs.DB}
}