A certified basis of 9 identities
This list of identities is a basis, proved in Lean, of 3 semigroups of order six, all of which generate the variety V[881]. Removing the identities that follow from the others leaves 2 identities (Vampire); the variety page shows the shortest known basis.
Identifier sb-a421756b24262c3f in the data of the bases-min seal.
Certified for
The identities
- xy ≈ yx
- x²y ≈ xyx
- x²y ≈ yx²
- xyx ≈ yx²
- xyz ≈ xzy
- xyz ≈ yxz
- xyz ≈ yzx
- xyz ≈ zyx
- xyzt ≈ uvws