A certified basis of 6 identities
This list of identities is a basis, proved in Lean, of 3 semigroups of order six, all of which generate the variety V[5540]. Removing the identities that follow from the others leaves 2 identities (Vampire); the variety page shows the shortest known basis.
Identifier sb-c940c154094354c9 in the data of the bases-min seal.
Certified for
The identities
- x³ ≈ x⁴
- x²y ≈ xy²
- xyx ≈ yx²
- xy² ≈ xy³
- xyz ≈ yxz
- xyz ≈ xyz²