Recent questions and answers in Mathematical Logic

0 votes

0 answers

1

zeal test descrete
My doubt is in second hasse diagram for (I,g) lub should be I and j so it is not lattice please correct me if i amwrong

asked 21 hours ago in Mathematical Logic by Prince Sindhiya Active (4.4k points) | 14 views

0 votes

1 answer

2

Propositional and First Order Logic GATE-CS-2006

answered 1 day ago in Mathematical Logic by rajputved (45 points) | 389 views

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0 answers

3

#virtual gate
Four siblings go shopping with their father. If Abhay gets shoes, then Asha does not get a necklace. If Arun gets a T-shirt, then Aditi gets bangles. If Abhay does not get shoes or Aditi gets bangles, the mother will be happy. Which of the following is true? (a) If ... If the mother is not happy, then Asha did not get a necklace and Arun did not get a T-shirt. (d) None of the above. [closed]

asked 2 days ago in Mathematical Logic by himgta Active (2.3k points) | 7 views

0 votes

1 answer

4

Lattice

answered 2 days ago in Mathematical Logic by Deepakk Poonia (Dee) Boss (19.4k points) | 44 views

0 votes

1 answer

5

Made easy test series
What is the difference between (ii) and (iv). I understood (ii) as "All the engineers like at least some doctor" What will be the translation for (iv) ?

answered 3 days ago in Mathematical Logic by goxul Active (4.2k points) | 24 views

0 votes

1 answer

6

universe of discourse[ propositional logic]

answered 4 days ago in Mathematical Logic by Shubham Aggarwal Active (1.2k points) | 13 views

0 votes

1 answer

7

why is the conclusion incorrect for the below premises ?

answered 4 days ago in Mathematical Logic by Mk Utkarsh Boss (23.6k points) | 72 views

0 votes

0 answers

8

#books
Some cat are intelligent express into first order logic if domain are animals

asked 6 days ago in Mathematical Logic by amit166 (329 points) | 19 views

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0 answers

9

#notesbook
you cannot ride the roller coaster if you are under 4 feet tall unless you are old then 16 years convert into propostional logic

asked 6 days ago in Mathematical Logic by amit166 (329 points) | 9 views

0 votes

1 answer

10

gatezeal testseries

answered 6 days ago in Mathematical Logic by Gurdeep Saini Active (3.3k points) | 81 views

0 votes

0 answers

11

gate zeal test series
is there any shortcut to do this question fast ?

asked 6 days ago in Mathematical Logic by Prince Sindhiya Active (4.4k points) | 40 views

0 votes

0 answers

12

gate zeal test series
Its answer is D) can anyone explain what is difference between a) and d)

asked 6 days ago in Mathematical Logic by Prince Sindhiya Active (4.4k points) | 11 views

0 votes

0 answers

13

gate zeal test series
i didn't read the concept related to strongly connected components please it describe it for this question

asked 6 days ago in Mathematical Logic by Prince Sindhiya Active (4.4k points) | 31 views

0 votes

0 answers

14

gate zeal test series

asked 6 days ago in Mathematical Logic by Prince Sindhiya Active (4.4k points) | 9 views

+1 vote

1 answer

15

GATEBOOK-2019-DM1-10
Assuming a non-empty universe, the formula $(\forall x P(x) \vee \exists y P(y))$ is equivalent to $\exists x (P(x))$ $ (\forall x P(x))$ $ \neg (\forall x P(x))$ $ \neg (\exists x (P(x))$

answered 6 days ago in Mathematical Logic by Arjun Veteran (363k points) | 45 views

0 votes

0 answers

16

Virtual gate

asked Nov 11 in Mathematical Logic by Anuj Mishra (7 points) | 19 views

0 votes

1 answer

17

Gate zeal booklet
1)How to approach question no. 34,36

answered Nov 9 in Mathematical Logic by goxul Active (4.2k points) | 33 views

0 votes

1 answer

18

Gate zeal booklet
How to write the last line of Qno. 19 - irrespective of whether the system has been armed the alarm should go off when there is fire For Qno 20 I am getting iii) and iv) as true but answer is a) please check the 5th one

answered Nov 9 in Mathematical Logic by goxul Active (4.2k points) | 24 views

0 votes

1 answer

19

GateZeal booklet
answer for this is A) My doubt is why D) can't be the answer

answered Nov 9 in Mathematical Logic by Mk Utkarsh Boss (23.6k points) | 15 views

0 votes

0 answers

20

Descrete math zeal booklet
Its answer is a) but here more(x,y) is given means it should be like this -- x is more than y then isn't a) is wrong

asked Nov 9 in Mathematical Logic by Prince Sindhiya Active (4.4k points) | 22 views

0 votes

0 answers

21

Gate zeal booklet
I am getting b) but right option is a) please check it

asked Nov 9 in Mathematical Logic by Prince Sindhiya Active (4.4k points) | 16 views

0 votes

0 answers

22

Gate zeal booklet
Answer for this is a) but m getting d) as right option please check it

asked Nov 9 in Mathematical Logic by Prince Sindhiya Active (4.4k points) | 13 views

+1 vote

1 answer

23

GATEBOOK-2019-DM1-1
Which of the following first order logic statement is equivalent to below statement? If anyone cheats, everyone suffers. $S_1 \forall x (\text{cheat}(x) \to \forall y \text{ suffer}(y))$ $S_2: \forall x\forall y (\text{cheat}(x) \to \text{ suffer}(y))$ Only S1 Only S2 Both S1 and S2 None

answered Nov 9 in Mathematical Logic by Mk Utkarsh Boss (23.6k points) | 54 views

0 votes

0 answers

24

self doubt
Best book for probability in gate point of view. variety of question should be in this book. and the question should be gate type. please reply fast. thank you

asked Nov 5 in Mathematical Logic by iamdeepakji (117 points) | 36 views

+1 vote

0 answers

25

self doubt
there is a property implies in propositional logic i.e. ---> suppose p : he is honest , q : he is greedy ( anything u make according to u ) now p ---> q can be represented as 1) if p then q 2) if p,q 3) a sufficent condition for q is p 4) q ... . SO ANOTHER WAYS TO WRITE P-------> Q IF U HAVE ANY MORE THEN PLZZZ COMMENT AND PLZZZ ALSO TELL HOW R U IDENTIFYING THESE P AND Q

asked Nov 5 in Mathematical Logic by Deepanshu Active (4.3k points) | 26 views

0 votes

0 answers

26

Self Doubt
If you do every problem in this book, then you will learn discrete mathematics. You learned discrete mathematics. Therefore, you did every problem in this book. The above argument is A Valid and Satisfiable B Valid but not satisfiable C Invalid D Tautology

asked Nov 5 in Mathematical Logic by manisha11 Active (1.2k points) | 26 views

+14 votes

4 answers

27

GATE2001-1.3
Consider two well-formed formulas in propositional logic $F_1: P \Rightarrow \neg P$ $F_2: (P \Rightarrow \neg P) \lor ( \neg P \Rightarrow P)$ Which one of the following statements is correct? $F_1$ is satisfiable, $F_2$ is valid $F_1$ unsatisfiable, $F_2$ is satisfiable $F_1$ is unsatisfiable, $F_2$ is valid $F_1$ and $F_2$ are both satisfiable

answered Nov 4 in Mathematical Logic by skeltro (183 points) | 1.8k views

+20 votes

7 answers

28

GATE2014-1-53
Which one of the following propositional logic formulas is TRUE when exactly two of $p,q$ and $r$ are TRUE? $(( p \leftrightarrow q) \wedge r) \vee (p \wedge q \wedge \sim r)$ $( \sim (p \leftrightarrow q) \wedge r)\vee (p \wedge q \wedge \sim r)$ $( (p \to q) \wedge r) \vee (p \wedge q \wedge \sim r)$ $(\sim (p \leftrightarrow q) \wedge r) \wedge (p \wedge q \wedge \sim r) $

answered Nov 4 in Mathematical Logic by Himanshu Kumar 1 (281 points) | 2.4k views

0 votes

1 answer

29

#viral math
6÷2(1+2) = ?

answered Nov 2 in Mathematical Logic by Manas Mishra Active (1.8k points) | 29 views

+16 votes

3 answers

30

TIFR2017-B-11
Given that $B(x)$ means "$x$ is a bat", $F(x)$ means "$x$ is a fly", and $E(x, y)$ means "x eats $y$", what is the best English translation of $$ \forall x(F(x) \rightarrow \forall y (E(y, x) \rightarrow B(y)))?$$ all flies eat bats every fly is eaten by some bat bats eat only flies every bat eats flies only bats eat flies

answered Nov 1 in Mathematical Logic by Dharmendra Lodhi Active (2.6k points) | 650 views

0 votes

1 answer

31

SELF DOUBT
hows STAR graph bipitrate ??? please help with example . i am doing this by 2 coloring method but not getting any point.

answered Nov 1 in Mathematical Logic by Vishnathan (285 points) | 32 views

+1 vote

1 answer

32

GATEBOOK-2019-DM1-7
Which of the following propositional formulae is a tautology? $(\neg p \vee r ) \rightarrow (p \vee \neg r)$ $ \neg ( p \rightarrow (p \wedge q ))$ $ r \rightarrow ( p \wedge \neg r )$ $ ( p \leftrightarrow q ) \vee (p \leftrightarrow \neg q)$

answered Nov 1 in Mathematical Logic by Lakshman Patel RJIT Boss (14.4k points) | 30 views

0 votes

1 answer

33

GATEBOOK-2019-DM1-20
A binary operator is defined as follows $P \Updownarrow Q = \sim P \wedge Q$ Which of the following statement is equivalent to $P \rightarrow Q $ $\sim P \Updownarrow Q$ $\sim( P \Updownarrow Q)$ $\sim( \sim P \Updownarrow Q)$ $\sim ( \sim P \Updownarrow \sim Q)$

answered Oct 31 in Mathematical Logic by Lakshman Patel RJIT Boss (14.4k points) | 14 views

0 votes

1 answer

34

GATE 2003
plzz send exact solution

answered Oct 31 in Mathematical Logic by `JEET Active (1.3k points) | 29 views

0 votes

0 answers

35

Engineering mathematics
What is is the best strategy or rather a productive strategy to learn mathematics part of GATE for 2019? Please share your experiences, resources used, tips and tricks. Thank You.

asked Oct 31 in Mathematical Logic by `JEET Active (1.3k points) | 27 views

0 votes

0 answers

36

proposition logic
CONVERT IN TO LOGIC No one who loves some one is not loved by anyone lets S(x):x is somebody L(x,y):x loves y

asked Oct 30 in Mathematical Logic by Anurag Tiwari 1 (249 points) | 13 views

0 votes

0 answers

37

self doubt
isomorphism and planarity is removed from Gate CSE syllabus or not? please response as soon as possible. Thank you.

asked Oct 30 in Mathematical Logic by iamdeepakji (117 points) | 26 views

+1 vote

1 answer

38

Test_series
If an idempotent matrix is also Skew-Symmetric then it must be a Null matrix an involuntary matrix an identity matrix Harmitian matrix

answered Oct 30 in Mathematical Logic by Prince Singh 1 (55 points) | 160 views

0 votes

1 answer

39

linear algebra
if A is a non-singular matrix and(I-A+A^2-...+(-1)^n A^n)=0 then A^-1=__________ 1) A^n 2)-A^(n-1) 3)(-1)^n A^n-1 4)(-1)^(n-1).A^n

answered Oct 29 in Mathematical Logic by kd..... (377 points) | 13 views

0 votes

1 answer

40

self doubt
How much storage is needed to represent a simple graph with n vertices and m edges using a) adjacency lists? b) an adjacency matrix? c) an incidence matrix? Rosen_discrete_mathematics section 10.4 question 70. thankyou.

answered Oct 29 in Mathematical Logic by Soumya Tiwari Active (1.3k points) | 9 views

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