SemiBase

A certified basis of 3 identities

This list of identities is a basis, proved in Lean, of 6 semigroups of order six, all of which generate the variety V[8932]. Removing the identities that follow from the others leaves 2 identities (Vampire); the variety page shows the shortest known basis.

Identifier sb-d8cdc5a40379a941 in the data of the bases-min seal.

Certified for

The identities

  1. xy ≈ xyx²
  2. xy ≈ xy³
  3. xyzt ≈ xytz