Aptitude | GATE CS 1998 | Question 59 Last Updated : 20 Nov, 2018 Improve Improve Like Article Like Save Share Report a. The implication gate shown below, has two inputs (x and y), the output is 1 except when x=1 and y=0. Realize f=x’y + xy’ using only four implication gates. b. Show that the implication gate is functionally complete.  Answer: Explanation: Quiz of this Question Like Article Suggest improvement Previous Aptitude | GATE CS 1998 | Question 72 Next Aptitude | GATE CS 1998 | Question 60 Share your thoughts in the comments Add Your Comment Please Login to comment...