SemiBase

A certified basis of 7 identities

This list of identities is a basis, proved in Lean, of 3 semigroups of order six, all of which generate the variety V[2586]. Removing the identities that follow from the others leaves 3 identities (Vampire); the variety page shows the shortest known basis.

Identifier sb-12dfbcbd98e9d430 in the data of the bases-min seal.

Certified for

The identities

  1. x³ ≈ x⁴
  2. xyx ≈ xy²
  3. xyx ≈ yx²
  4. x³y ≈ x²y
  5. xy² ≈ xy³
  6. xyz ≈ yxz
  7. xy²z ≈ xyz