100 SOLVED QUESTIONS FOR CSIR,GATE, SET AND OTHER COMPETITIVE EXAMS-PART 1
Question 1: The number of surjective maps from a set of elements to a set of elements is
Answer: Let be a elements set and be a elements set. Here we need to find number of surjective maps between onto . The idea is to partition the set into non-empty subset and assign each subset to a element of .
Answer: Let be a elements set and be a elements set. Here we need to find number of surjective maps between onto . The idea is to partition the set into non-empty subset and assign each subset to a element of .
