The Gateway to Computer Science Excellence
For all GATE CSE Questions
Toggle navigation
Facebook Login
or
Email or Username
Password
Remember
Login
Register

I forgot my password
Activity
Questions
Unanswered
Tags
Subjects
Users
Ask
Prev
Blogs
New Blog
Exams
GATE199416
+3
votes
241
views
Every element $a$ of some ring $(R, +, o)$ satisfies the equation $a\;o\;a=a$. Decide whether or not the ring is commutative.
gate1994
settheory&algebra
ring
normal
outofsyllabusnow
asked
Oct 6, 2014
in
Set Theory & Algebra
by
Kathleen
Veteran
(
52.2k
points)

241
views
answer
comment
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
0
Answers
← Prev. Qn. in Sub.
Next Qn. in Sub. →
← Prev.
Next →
Related questions
+1
vote
1
answer
1
GATE199422
Consider the program below: Program main: var r:integer; procedure two: begin write (r); end procedure one: var r:integer; begin r:=5; two; end begin r:=2; two; one; two; end What is printed by the above program if Static scoping is assumed for all variables; Dynamic scoping is assumed for all variables. Give reasons for your answer.
asked
Oct 6, 2014
in
Programming
by
Kathleen
Veteran
(
52.2k
points)

509
views
gate1994
programming
variablebinding
normal
outofsyllabusnow
+12
votes
5
answers
2
GATE19943.9
Every subset of a countable set is countable. State whether the above statement is true or false with reason.
asked
Oct 6, 2014
in
Set Theory & Algebra
by
Kathleen
Veteran
(
52.2k
points)

698
views
gate1994
settheory&algebra
normal
sets
descriptive
countableuncountableset
+16
votes
4
answers
3
GATE19943.8
Give a relational algebra expression using only the minimum number of operators from $(∪, −)$ which is equivalent to $R$ $∩$ $S.$
asked
Oct 6, 2014
in
Set Theory & Algebra
by
Kathleen
Veteran
(
52.2k
points)

933
views
gate1994
settheory&algebra
normal
sets
descriptive
+9
votes
4
answers
4
GATE19942.9
The Hasse diagrams of all the lattices with up to four elements are _____ (write all the relevant Hasse diagrams)
asked
Oct 4, 2014
in
Set Theory & Algebra
by
Kathleen
Veteran
(
52.2k
points)

996
views
gate1994
settheory&algebra
lattice
normal
descriptive
Quick search syntax
tags
tag:apple
author
user:martin
title
title:apple
content
content:apple
exclude
tag:apple
force match
+apple
views
views:100
score
score:10
answers
answers:2
is accepted
isaccepted:true
is closed
isclosed:true
Recent Posts
ISRO CSE 2020 PAPER ANALYSE
BARC OCES/DGFS 2020
ISI CMI PDF by GATE Overflow
Management Trainee Recruitment COAL INDIA 2020
ECIL Interview Experience
All categories
General Aptitude
1.9k
Engineering Mathematics
7.5k
Discrete Mathematics
5.2k
Mathematical Logic
2.1k
Set Theory & Algebra
1.4k
Combinatory
916
Graph Theory
824
Probability
1k
Linear Algebra
723
Calculus
593
Digital Logic
2.9k
Programming and DS
4.9k
Algorithms
4.4k
Theory of Computation
6.2k
Compiler Design
2.1k
Operating System
4.5k
Databases
4.1k
CO and Architecture
3.4k
Computer Networks
4.2k
Non GATE
1.4k
Others
1.4k
Admissions
595
Exam Queries
573
Tier 1 Placement Questions
23
Job Queries
72
Projects
18
Follow @csegate
Recent Blog Comments
it's depends year to year
What was the average cutoff that was maintained...
@Shivateja MST I don't think it will go high
http://univ.tifr.res.in/gs2020/Test_Results/INT_Sh...
TIFR interview shortlist is published.
50,741
questions
57,242
answers
198,011
comments
104,604
users