A certified basis of 4 identities
This list of identities is a basis, proved in Lean, of 5 semigroups of order six, all of which generate the variety V[5680]. Removing the identities that follow from the others leaves 3 identities (Vampire); the variety page shows the shortest known basis.
Identifier sb-bb7e3d19c3317d14 in the data of the bases-min seal.
Certified for
The identities
- x²y ≈ xyx
- x²y ≈ xy²
- xyz ≈ xzy
- x²yzt ≈ xyzt