SemiBase

Variety V[4337]

The variety generated by [6, 4337]: all semigroups that satisfy every identity of [6, 4337]. 1 semigroup of order six generates it, and 2 semigroups of order six lie in it.

Shortest known basis

3 identities reduced

  1. x ≈ x⁷
  2. x²y² ≈ y²x²
  3. x⁶ ≈ y⁶

Reduced as far as the search went: some identity may still follow from the others. Obtained from a certified basis by removing identities that follow from the others (Vampire). Shortest known, not known to be minimal.

Certified bases

Among the 505 varieties

V[14996]V[4337]
Directly above
none: a maximal variety of the census
Directly below

A variety lies above another when it contains it. An inclusion holds when the basis of the smaller variety derives that of the larger one, proved by Vampire; it fails when a semigroup of order six lies in the one and not in the other.

Explore V[4337] in the inclusion graph, with everything above and below it.

Generated by 1 semigroup of order six

Contains 2 semigroups of order six

The semigroups of order six that satisfy the basis.

Show all 2