SemiBase

A certified basis of 3 identities

This list of identities is a basis, proved in Lean, of 2 semigroups of order six, all of which generate the variety V[2797]. Removing the identities that follow from the others leaves 3 identities (Vampire); the variety page shows the shortest known basis.

Identifier sb-433516d52c3db11c in the data of the bases-min seal.

Certified for

The identities

  1. xyx ≈ yxy
  2. xyz ≈ yxz
  3. xy²zt ≈ xyzt