As in "to mull something over"? Think, contemplate, consider, cogitate, examine...
'Mull Set' . I think you mean 'NULL SET'. This means a set with no elements, or an empty set.
The two kinds of verbs are linking verbs and verbs.
Action Verbs and Helping Verbs
The two kinds of verbs are action verbs and linking verbs.
Present tense: I am; you are; he,she,it is; we are, they are. Simple past I was, you were; he,she,it were; we were; they were
"Mull" is a verb.
Martin Mull's birth name is Martin Eugene Mull.
Brandon Mull's parents' names are David and Emily Mull.
What's a Mull? Plum
America 2-Night - 1978 Martin Mull 1-65 was released on: USA: 7 July 1978
Carter Mull was born in 1977.
Clay Mull was born in 1979.
Jack Mull was born in 1943.
Mull Kireedom was created in 1968.
Gary Mull was born in 1937.
Gary Mull died in 1993.
Martin Mull is 5' 10".