General algebraic systems Mal'cev conditions Concept
Day terms
Summary
Day terms are a finite chain of quaternary terms of a variety that satisfy certain identities. By Day's theorem, a variety has Day terms if and only if it is a congruence-modular variety. They give a Mal'cev condition for congruence modularity, in the same way that Jónsson terms do for congruence distributivity.
Further reading
About this page
| Tag | B0YKA8401M |
|---|---|
| URI | m2://B0YKA8401M |
| Kind | concept |
| Writing | W0 stub |
| MSC | 08B05, 08B10 |
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