Mathematical Sciences Classification System
06Bxx - Lattices 
[See also  03G10]
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                            06B05Structure theory
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                            06B10Ideals, congruence relations
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                            06B15Representation theory
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                            06B20Varieties of lattices
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                            06B23Complete lattices, completions
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                            06B25
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                            06B30
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                            06B35
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                            06B75Generalizations of lattices
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                            06B99None of the above, but in this section