|
|
Here is the "artist's"
impression of a permutation model, see [HMT] 3.2.68,
which shows that not every abstract diagonal-free
cylindric algebra of dimension three is representable.
This model satisfies the Church-Rosser property
and commutativity of the cylindrifications, but
the "cubifying" equation does not hold.
Picture1.
|
|
|
