Set of all strings over S ={0,1} with concatenation operator


Choose the correct statement.

The set of all strings over an alphabet S ={0,1} with the concatenation operator for strings

a) does not form a group

b) forms a noncommutative group

c) does not have a right identity

d) forms a group if the empty string is removed from S *

Ravi Garg edited question
    Anupriya Anu (anonymous)

    a) does not form a group- bcoz the property of existence of identity & inverse does not exist.

    Anupriya Anu answered
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