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The set of all recursively enumerable languages is , The set of all recursively enumerable languages is
The set of all recursively enumerable languages is
A.
closed under complementation
closed under complementation
B.
closed under intersection
closed under intersection
C.
a subset of the set of all recursive languages
a subset of the set of all recursive languages
D.
an uncountable set
an uncountable set
Solution
B. closed under intersection
Explanation
The Set of RE languages is closed under intersection, not closed under complementation, is not a subset of set of REC language and is a countable set.
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