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Recent questions tagged boolean-algebra
20
votes
2
answers
331
GATE CSE 1991 | Question: 5-b
Find the minimum sum of products form of the logic function $ f(A,B,C,D) = \Sigma_{m}(0,2,8,10,15)+ \Sigma _{d}(3,11,12,14)$ where $m$ and $d$ represent minterm and don't care term respectively.
ibia
asked
in
Digital Logic
Nov 14, 2015
by
ibia
3.2k
views
gate1991
digital-logic
boolean-algebra
min-sum-of-products-form
descriptive
5
votes
3
answers
332
Boolean Algebra
Consider a Hasse Diagram for a Boolean Algebra of Order 3 What can we comment about it? How is it successfully able to represent the Boolean Algebra System? Is there an easy way to check for distributive lattice, or any other properties of a lattice? ... that one should provide a complete answer to all parts of the question. Whatever one can supply to support its answer is welcomed.
amarVashishth
asked
in
Set Theory & Algebra
Nov 11, 2015
by
amarVashishth
4.3k
views
partial-order
boolean-algebra
lattice
engineering-mathematics
set-theory&algebra
7
votes
3
answers
333
ISRO2011-6
Evaluate $\text{(X xor Y) xor Y}?$ All $\text{1's}$ All $\text{0's}$ $\text{X}$ $\text{Y}$
amarVashishth
asked
in
Digital Logic
Oct 11, 2015
by
amarVashishth
6.6k
views
isro2011
digital-logic
boolean-algebra
3
votes
3
answers
334
How many of $16$ boolean functions in $2$ variables $x$ and $y$ can be represented using only
How many of $16$ boolean functions in $2$ variables $x$ and $y$ can be represented using only the given set of operators, variables $x$ and $y$ ,and values $0$ and $1$? a) $\{\, \sim \,\}$ b) $\{\, \cdot \,\}$ c) $\{\, + \,\}$ d) $\{\, \cdot \,,\, + \,\}$
Pooja Palod
asked
in
Digital Logic
Oct 7, 2015
by
Pooja Palod
1.5k
views
digital-logic
boolean-algebra
33
votes
3
answers
335
TIFR CSE 2010 | Part B | Question: 21
For $x \in \{0,1\}$, let $\lnot x$ denote the negation of $x$, that is $\lnot \, x = \begin{cases}1 & \mbox{iff } x = 0\\ 0 & \mbox{iff } x = 1\end{cases}$. If $x \in \{0,1\}^n$, then $\lnot \, x$ denotes the component wise negation of $x$; that ... $g(x) = f(x) \land f(\lnot x)$ $g(x) = f(x) \lor f(\lnot x)$ $g(x) = \lnot f(\lnot x)$ None of the above.
makhdoom ghaya
asked
in
Digital Logic
Oct 5, 2015
by
makhdoom ghaya
3.4k
views
tifr2010
digital-logic
boolean-algebra
4
votes
3
answers
336
How to solve this boolean Exp?
Boolean Expression is (A+B).(B+C) Please give a detailed explanation.
iarnav
asked
in
Digital Logic
Oct 2, 2015
by
iarnav
554
views
boolean-algebra
digital-logic
3
votes
2
answers
337
How do I solve this Boolean expression?
How do I solve this Boolean expression? $(A+B) \cdot (B+C) \cdot (C+A)$ Kindly write the step wise explanation with properties used.
iarnav
asked
in
Digital Logic
Sep 23, 2015
by
iarnav
689
views
digital-logic
boolean-algebra
94
votes
8
answers
338
GATE CSE 2015 Set 1 | Question: 39
Consider the operations $\textit{f (X, Y, Z) = X'YZ + XY' + Y'Z'}$ and $\textit{g (X, Y, Z) = X'YZ + X'YZ' + XY}$ Which one of the following is correct? Both $\left\{\textit{f} \right\}$ and ... $\left\{ \textit{f}\right\}$ nor $\left\{\textit{g}\right\}$ is functionally complete
makhdoom ghaya
asked
in
Digital Logic
Feb 13, 2015
by
makhdoom ghaya
27.0k
views
gatecse-2015-set1
boolean-algebra
difficult
56
votes
12
answers
339
GATE CSE 2015 Set 2 | Question: 37
The number of min-terms after minimizing the following Boolean expression is _______. $[D'+AB'+A'C+AC'D+A'C'D]'$
go_editor
asked
in
Digital Logic
Feb 12, 2015
by
go_editor
18.7k
views
gatecse-2015-set2
digital-logic
boolean-algebra
normal
numerical-answers
42
votes
4
answers
340
GATE IT 2005 | Question: 7
Which of the following expressions is equivalent to $(A \oplus B) \oplus C$ $(A + B + C) (\bar A +\bar B +\bar C)$ $(A + B + C) (\bar A +\bar B + C)$ $ABC + \bar A (B \oplus C) + \bar B(A \oplus C)$ None of these
Ishrat Jahan
asked
in
Digital Logic
Nov 3, 2014
by
Ishrat Jahan
10.2k
views
gateit-2005
digital-logic
normal
boolean-algebra
36
votes
4
answers
341
GATE IT 2004 | Question: 44
The function $A \bar B C + \bar A B C + AB \bar C+ \bar A \bar B C+ A \bar B \bar C$ is equivalent to $A \bar C + AB+ \bar A C$ $A \bar B+ A \bar C+ \bar A C$ $\bar A B+ A \bar C+ A \bar B$ $\bar AB+ AC+ A \bar B$
Ishrat Jahan
asked
in
Digital Logic
Nov 2, 2014
by
Ishrat Jahan
6.8k
views
gateit-2004
digital-logic
boolean-algebra
easy
46
votes
3
answers
342
GATE IT 2008 | Question: 37
Consider the following state diagram and its realization by a JK flip flop The combinational circuit generates J and K in terms of x, y and Q. The Boolean expressions for J and K are : $\overline {x \oplus y}$ and $\overline {x \oplus y}$ $\overline {x \oplus y}$ and $ {x \oplus y}$ $ {x \oplus y}$ and $\overline {x \oplus y}$ $ {x \oplus y}$ and $ {x \oplus y}$
Ishrat Jahan
asked
in
Digital Logic
Oct 28, 2014
by
Ishrat Jahan
14.1k
views
gateit-2008
digital-logic
boolean-algebra
normal
digital-counter
25
votes
4
answers
343
GATE CSE 1995 | Question: 2.5
What values of $A, B, C$ and $D$ satisfy the following simultaneous Boolean equations? $\overline{A} + AB =0, AB=AC, AB+A\overline{C}+CD=\overline{C}D$ $A=1, B=0, C=0, D=1$ $A=1, B=1, C=0, D=0$ $A=1, B=0, C=1, D=1$ $A=1, B=0, C=0, D=0$
Kathleen
asked
in
Digital Logic
Oct 8, 2014
by
Kathleen
7.6k
views
gate1995
digital-logic
boolean-algebra
easy
31
votes
1
answer
344
GATE CSE 1994 | Question: 4
Let $\ast$ be a Boolean operation defined as $A\ast B = AB + \overline{A}\;\overline{B}$. If $C=A\ast B$ then evaluate and fill in the blanks: $A\ast A=$______ $C\ast A=$______ Solve the following boolean equations for the values of $A, B$ and $C:$ $AB+\overline{A}C=1$ $AC+B=0$
Kathleen
asked
in
Digital Logic
Oct 5, 2014
by
Kathleen
4.6k
views
gate1994
digital-logic
normal
boolean-algebra
descriptive
27
votes
4
answers
345
GATE CSE 1997 | Question: 2-1
Let $*$ be defined as $x * y = \bar{x} + y$. Let $z = x * y$. Value of $z * x$ is $\bar{x} + y$ $x$ $0$ $1$
Kathleen
asked
in
Digital Logic
Sep 29, 2014
by
Kathleen
5.3k
views
gate1997
digital-logic
normal
boolean-algebra
45
votes
7
answers
346
GATE CSE 2014 Set 3 | Question: 55
Let $\oplus$ denote the exclusive OR (XOR) operation. Let '$1$' and '$0$' denote the binary constants. Consider the following Boolean expression for $F$ over two variables $P$ and $Q$ ... $F$ is $P+Q$ $\overline{P+Q}$ $P \oplus Q$ $\overline {P \oplus Q}$
go_editor
asked
in
Digital Logic
Sep 28, 2014
by
go_editor
10.6k
views
gatecse-2014-set3
digital-logic
normal
boolean-algebra
22
votes
3
answers
347
GATE CSE 1998 | Question: 2.8
Which of the following operations is commutative but not associative? AND OR NAND EXOR
Kathleen
asked
in
Digital Logic
Sep 25, 2014
by
Kathleen
9.1k
views
gate1998
digital-logic
easy
boolean-algebra
42
votes
4
answers
348
GATE CSE 1998 | Question: 1.13
What happens when a bit-string is XORed with itself $n$-times as shown: $\left[B \oplus (B \oplus ( B \oplus (B \dots n \text{ times}\right]$ complements when $n$ is even complements when $n$ is odd divides by $2^n$ always remains unchanged when $n$ is even
Kathleen
asked
in
Digital Logic
Sep 25, 2014
by
Kathleen
10.0k
views
gate1998
digital-logic
normal
boolean-algebra
31
votes
7
answers
349
GATE CSE 2013 | Question: 21
Which one of the following expressions does NOT represent exclusive NOR of $x$ and $y$? $xy + x′ y′$ $x\oplus y′$ $x′\oplus y$ $x′\oplus y′$
Arjun
asked
in
Digital Logic
Sep 24, 2014
by
Arjun
9.4k
views
gatecse-2013
digital-logic
easy
boolean-algebra
19
votes
5
answers
350
GATE CSE 1999 | Question: 1.7
Which of the following expressions is not equivalent to $\bar{x}$? $x \text{ NAND } x$ $x \text{ NOR } x$ $x \text{ NAND } 1$ $x \text{ NOR } 1$
Kathleen
asked
in
Digital Logic
Sep 23, 2014
by
Kathleen
8.5k
views
gate1999
digital-logic
easy
boolean-algebra
42
votes
5
answers
351
GATE CSE 2007 | Question: 33
Define the connective $*$ for the Boolean variables $X$ and $Y$ as: $X * Y = XY + X'Y'.$ Let $Z = X * Y$. Consider the following expressions $P$, $Q$ and $R$. $P : X = Y * Z, \\ Q :Y = X * Z, \\ R : X *Y * Z = 1$ Which of the following is TRUE? Only $P$ and $Q$ are valid. Only $Q$ and $R$ are valid. Only $P$ and $R$ are valid. All $P$, $Q$, $R$ are valid.
Kathleen
asked
in
Digital Logic
Sep 21, 2014
by
Kathleen
8.8k
views
gatecse-2007
digital-logic
normal
boolean-algebra
43
votes
6
answers
352
GATE CSE 2007 | Question: 32
Let $f(w, x, y, z) = \sum {\left(0,4,5,7,8,9,13,15\right)}$. Which of the following expressions are NOT equivalent to $f$? P: $x'y'z' + w'xy' + wy'z + xz$ Q: $w'y'z' + wx'y' + xz$ ... $x'y'z' + wx'y'+ w'y$ P only Q and S R and S S only
Kathleen
asked
in
Digital Logic
Sep 21, 2014
by
Kathleen
10.3k
views
gatecse-2007
digital-logic
normal
boolean-algebra
28
votes
5
answers
353
GATE CSE 2004 | Question: 17
A Boolean function $x’y’ + xy + x’y$ is equivalent to $x' + y'$ $x + y$ $x + y'$ $x' + y$
Kathleen
asked
in
Digital Logic
Sep 18, 2014
by
Kathleen
7.8k
views
gatecse-2004
digital-logic
easy
boolean-algebra
30
votes
1
answer
354
GATE CSE 2002 | Question: 2-3
Let $f(A,B) = A'+B$. Simplified expression for function $f(f(x+y, y), z)$ is $x' + z$ $xyz$ $xy' + z$ None of the above
Kathleen
asked
in
Digital Logic
Sep 15, 2014
by
Kathleen
7.8k
views
gatecse-2002
digital-logic
boolean-algebra
normal
41
votes
5
answers
355
GATE CSE 2000 | Question: 2.10
The simultaneous equations on the Boolean variables $x, y, z$ and $w$, $x + y + z = 1 $ $xy = 0$ $xz + w = 1$ $xy + \bar{z}\bar{w} = 0$ have the following solution for $x, y, z$ and $w,$ respectively: $0 \ 1 \ 0 \ 0$ $1 \ 1 \ 0 \ 1$ $1 \ 0 \ 1 \ 1$ $1 \ 0 \ 0 \ 0$
Kathleen
asked
in
Digital Logic
Sep 14, 2014
by
Kathleen
7.1k
views
gatecse-2000
digital-logic
boolean-algebra
easy
30
votes
4
answers
356
GATE CSE 1992 | Question: 02-i
The operation which is commutative but not associative is: AND OR EX-OR NAND
Kathleen
asked
in
Digital Logic
Sep 12, 2014
by
Kathleen
7.2k
views
gate1992
easy
digital-logic
boolean-algebra
multiple-selects
31
votes
4
answers
357
GATE CSE 2008 | Question: 26
If $P, Q, R$ are Boolean variables, then $(P + \bar{Q}) (P.\bar{Q} + P.R) (\bar{P}.\bar{R} + \bar{Q})$ simplifies to $P.\bar{Q}$ $P.\bar{R}$ $P.\bar{Q} + R$ $P.\bar{R} + Q$
Kathleen
asked
in
Digital Logic
Sep 11, 2014
by
Kathleen
10.5k
views
gatecse-2008
easy
digital-logic
boolean-algebra
34
votes
3
answers
358
GATE CSE 2012 | Question: 6
The truth table ${\begin{array}{|c|c|c|}\hline \textbf{X}& \textbf{Y}& \textbf{(X,Y)} \\\hline 0& 0& 0 \\ \hline 0& 1&0\\ \hline 1& 0& 1 \\\hline 1& 1& 1 \\\hline \end{array}}$ represents the Boolean function $X$ $X + Y$ $X \oplus Y$ $Y$
gatecse
asked
in
Digital Logic
Aug 5, 2014
by
gatecse
4.3k
views
gatecse-2012
digital-logic
easy
boolean-algebra
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