A certified basis of 4 identities
This list of identities is a basis, proved in Lean, of 4 semigroups of order six, all of which generate the variety V[2808]. Removing the identities that follow from the others leaves 3 identities (Vampire); the variety page shows the shortest known basis.
Identifier sb-b5154609fdf11b5f in the data of the bases-min seal.
Certified for
The identities
- x⁴ ≈ x⁵
- xyx ≈ yx²
- x²y² ≈ xy²x
- xyz ≈ yxz