Recent questions and answers in Mathematical Logic
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Recent questions and answers in Mathematical Logic

Recent questions and answers in Mathematical Logic
0 votes
0 answers 37 views
#MadeEasyTextBook #Permutation&Combinations
In the below shown question I am getting answer as 70 but the given answer in book is 35. Can anyone help me solving this question?
sarthakdarji asked in Mathematical Logic Oct 9
by sarthakdarji
11 points
37 views
0 votes
0 answers 42 views
Introduction to Discrete Mathematics- Graph Theory
thinlamb asked in Mathematical Logic Aug 24
by thinlamb
5 points
42 views
0 votes
0 answers 24 views
lattice made easy test series doubt
A L be the the set of lattice [s,#],where S is the set and # is the relation defined on s .if for every subset A of S [A,#] is a lattice then the L must be? 1 total order set 2 distributive lattice 3 boolean lattice 4 complete lattice
jugnu1337 asked in Mathematical Logic Aug 23
by jugnu1337
5 points
24 views
0 votes
0 answers 24 views
gatebook
Let A and B be two sets such that . There is a one to one function from A to B. Which of the following must be true for S1: is onto function S2: has an inverse A) Only S1 B) Only S2 C) Both S1 and S2 D) None of the above
farmanahmed888 asked in Mathematical Logic Aug 19
by farmanahmed888
5 points
24 views
0 votes
0 answers 41 views
Discrete mathematics Kenneth Rosen The foundation logic and proofs page 22 question 4
abh01032001 asked in Mathematical Logic Aug 18
by abh01032001
5 points
41 views
0 votes
0 answers 18 views
#Binomial
Then find for exactly 3 drivers, chance of they have committed any one of the two offenses. chance of they have committed both of the offenses.
Palash Nandi 1 asked in Mathematical Logic Aug 16
by Palash Nandi 1
13 points
18 views
0 votes
0 answers 16 views
Sampling and Sampling Distributions pg 32, exercise 2.6
Minoli Oshani asked in Mathematical Logic Aug 16
by Minoli Oshani
5 points
16 views
0 votes
0 answers 33 views
GATE 2021 Mathematical Reasoning Question
S1 : ( !q * ( p + q )) -> p How is above statement a tautology ? Truth Table doesn’t satisfy !
rogerx asked in Mathematical Logic Aug 12
by rogerx
5 points
33 views
0 votes
0 answers 17 views
#Continuty
The confusion arises as according to the def. continuity exists at a point ‘a’, when LHL, RHL, f(a) is finite and LHL=RHL=f(a).
Palash Nandi 1 asked in Mathematical Logic Jul 29
by Palash Nandi 1
13 points
17 views
0 votes
0 answers 30 views
Any other reource for calculus except for mitocw and harvard notes define on gatcse calculus
ykrishnay asked in Mathematical Logic Jul 27
by ykrishnay
103 points
30 views
0 votes
0 answers 27 views
Discrete Mathematics
How to prove the following statement is valid with the help of Inference Rules? (P $\wedge$ ( P $\rightarrow$ Q) ) $\rightarrow$ ($\sim$ Q $\vee$ P)
ShivangiChauhan asked in Mathematical Logic Jul 27
by ShivangiChauhan
17 points
27 views
0 votes
0 answers 18 views
calculus exact syllabus
i study calculus but now i totally confused in calculus cause what is the exact syllabus of calculus for gate cse in integration , so all types of integration i do like multiple integration etc ? please reply as i stuck in between.
ykrishnay asked in Mathematical Logic Jul 22
by ykrishnay
103 points
18 views
0 votes
0 answers 18 views
made easy cbt
answer given is 27 how to approach these kind of questions? what forulas will be used here?
Sharma9999999 asked in Mathematical Logic Jul 10
by Sharma9999999
5 points
18 views
0 votes
0 answers 49 views
what are the least resource of calculus ?
hi so what is least resource for calculus mainly for gate only, cause mit video is very long it is very time consuming
ykrishnay asked in Mathematical Logic Jun 28
by ykrishnay
103 points
49 views
0 votes
0 answers 15 views
#probability
I have a bag containing 20 red balls and 16 blue balls. I uniformly randomly take balls out from the bag without replacement until all balls of color have been removed. If the probability that the last ball I took was red can be represented as p/q , where p and q ... of drawing all the balls is 36c20. The probability is 35c19/36c20=5/9. but the answer is 4/9. pls, correct my solution?
DEBANJAN GHOSH asked in Mathematical Logic Jun 26
by DEBANJAN GHOSH
5 points
15 views
0 votes
0 answers 21 views
graph theory
On a gate paper 2015 set 2 Q26 CS of 2 marks theres a question about self complementary graph, what is the meaning of congruent to 0 mod 4, 1 mod 4
Chama hage asked in Mathematical Logic Jun 26
by Chama hage
5 points
21 views
1 vote
0 answers 29 views
Applied Gate Test
A chair car compartment has 16 chairs in a row and 12 people randomly take up a chair each and the next person comes up with additional luggage which requires him to have two adjacent chairs. The probability that the 13th person is able to sit on the same row is ? A) 11/20 B) 4/7 C) 81/140 D) 17/28
Dheeraj Varma asked in Mathematical Logic Jun 26
by Dheeraj Varma
19 points
29 views
1 vote
0 answers 25 views
#self_doubt #graph_theory
If a Graph G is Eulerian then all nodes will have Even degree But is the reverse True i.e. for any graph G’ if nodes of G’ have even degrees then G’ is Eulerian?
Palash Nandi 1 asked in Mathematical Logic Jun 3
by Palash Nandi 1
13 points
25 views
0 votes
0 answers 35 views
PhD Admissions Written Test (Basic)
Consider the matrix A = ( 1 1 7 2 −4 14 3 1 21 ) and let vA ={x y z } be vector not containing all 0s. The product A vA is 0 (all 0s) if we set x, y, z as how to solve such question
Rashimdixit asked in Mathematical Logic May 2
by Rashimdixit
9 points
35 views
0 votes
0 answers 17 views
PhD Admissions Written Test (Basic)
Consider the following on-line learning method to estimate the expected value of a real-valued random variable X. We begin with an initial estimate µ0, and then for t = 1, 2, . . . , Obtain xt as an independent identical distribution (i.i.d) sample of X ... t. Assume X is normally distributed with mean µ and variance σ 2 . If we choose αt = 1 t , then E[µt ] is
Rashimdixit asked in Mathematical Logic Apr 26
by Rashimdixit
9 points
17 views
0 votes
0 answers 44 views
Combinatorics
I am not able to solve few combinatroics questions although I have solve decent number of questions but sometimes not able to crack if a new type of sums comes up.. What to do ? How to proceed ?
exceptionXD asked in Mathematical Logic Apr 25
by exceptionXD
5 points
44 views
0 votes
0 answers 28 views
Kenneth H. Rosen 7th edition
Show that ¬(p ⊕ q) and p ↔ q are logically equivalent.
Champa asked in Mathematical Logic Apr 7
by Champa
5 points
28 views
0 votes
0 answers 30 views
Discrete Mathematics and its applications (Kenneth Rosen)
SmeetPatel asked in Mathematical Logic Mar 22
by SmeetPatel
5 points
30 views
0 votes
0 answers 34 views
Prepositional Logic
which of the following is valid ? 1- p => ( q v r ) 2- p => ( q ^ r ) please provide little bit explaination?
hitendra singh asked in Mathematical Logic Mar 9
by hitendra singh
73 points
34 views
1 vote
0 answers 60 views
GATE functions and relations
The function f: [0,3]$\rightarrow$[1,29] defined by f(x) = $2x^{3} - 15x^{2} + 36x +1$ where x is an integer is (a) injective and surjective (b) surjective but not injective (C) injective but not surjective (d) neither injective not surjective
donniedarko asked in Mathematical Logic Mar 7
by donniedarko
39 points
60 views
0 votes
0 answers 26 views
SELF DOUBT IN IMPLICATIONS
Can anybody please make me understand what's the relationship among implications in proposition logic and statements such as 1. Necessarily but not sufficient 2. Sufficient but not necessary 3. Sufficient as well as necessary 4. Neither sufficient nor necessary ( although I am ... <--> q If p is neither sufficient nor necessary is the same as ! (p <--> q)
s_dr_13 asked in Mathematical Logic Feb 9
by s_dr_13
15 points
26 views
0 votes
0 answers 41 views
Ace Test Series
Is the group closed under monoid? Can we treat 1 as identity??
vipin.gautam1906 asked in Mathematical Logic Feb 3
by vipin.gautam1906
9 points
41 views
0 votes
0 answers 23 views
How decision making is done in Lisp?
How decision making is done in Lisp?
Vikash40203 asked in Mathematical Logic Jan 17
by Vikash40203
5 points
23 views
0 votes
0 answers 27 views
Gate overflow book
I am having a confusion in precedence order of logical operators. For e.g. consider the expression (a ∧ b) → (a ∧ c) ∨ d. Then how is the expression evaluated? Like is it ((a ∧ b) → (a ∧ c)) ∨ d or (a ∧ b) →((a ∧ c) ∨ d)? ... than implication, so the second one should be correct. But from the solution, I see it is the first one. Link to the question: https://gateoverflow.in/654
hadarsh asked in Mathematical Logic Jan 16
by hadarsh
5 points
27 views
1 vote
0 answers 33 views
Self-doubt sum series and logaritms.
These are what i ended up with while solving a couple of recurrance relation can anyone help to solve further. $(n^2) log(n/2^{k-1}) + 2(n^2) log(n/2^{k-2}) + 3(n^2) log(n/2^{k-3}) + ...+ (n^2) log(n)$ $2. lg n + lg (n / 2) + lg (n / 4) + ... + lg (n / 2^{lg n})$ Note: Assume base 2 for log terms.
donniedarko asked in Mathematical Logic Jan 14
by donniedarko
39 points
33 views
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