A certified basis of 2 identities
This list of identities is a basis, proved in Lean, of 11 semigroups of order six, all of which generate the variety V[909]. Removing the identities that follow from the others leaves 2 identities (Vampire); the variety page shows the shortest known basis.
Identifier sb-a8d3d8326a67815c in the data of the bases-min seal.
Certified for
[6, 909] [6, 911] [6, 918] [6, 927] [6, 929] [6, 959] [6, 2259] [6, 2301] [6, 2569] [6, 2571] [6, 2573]
The identities
- xy ≈ yx
- x²yztu ≈ yztu