A free semilattice has the _______ property.
A. intersection
B. commutative and associative
C. identity
D. universal
Answer:D
A free semilattice has the _______ property.
A. intersection B. commutative and associative C. identity D. universal
Explanation: Any set X may be used to generate the free semilattice FX. The free semilattice is defined to consist of all of the finite subsets of X with the semilattice operation given by ordinary set union; the free semilattice has the universal property.