Abstract
The bottom of the lattice of varieties of modular ortholattices is described. The theorem that is proved is;
THEOREM. Every variety of modular ortholattices which is different from all the MOn, 0≤n≤ω, contains MOω.
The theorem is proved by translating the problem, at least partially, into the language of regular rings.
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Communicated by R. Wille
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Roddy, M. Varieties of modular ortholattices. Order 3, 405–426 (1987). https://doi.org/10.1007/BF00340782
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DOI: https://doi.org/10.1007/BF00340782