A certified basis of 5 identities
This list of identities is a basis, proved in Lean, of 3 semigroups of order six, all of which generate the variety V[5549]. Removing the identities that follow from the others leaves 4 identities (Vampire); the variety page shows the shortest known basis.
Identifier sb-1630bcc549c3859c in the data of the bases-min seal.
Certified for
The identities
- x³ ≈ x⁴
- xyx ≈ yx²
- x³y ≈ x²y
- x²yx ≈ xyx
- x²y² ≈ xy²x