Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
De Morgan's Laws
Continuing with the relationship between ∧ and ∨, we can also use De Morgan's Law to rearrange sentences involving negation in conjunction with these connectives. Actually, there are 2 equivalences which taken as a pair are called De Morgan's Law:
¬(P ∧Q) ≡ ¬P ∨¬Q
¬ (P ∨ Q) ≡ ¬P ∧ ¬Q
These are essential rules and it is good spending some time thinking regarding why they are true.
Contraposition
The contraposition equivalence is following:
P -> Q ≡ ¬Q -> ¬P
At first, this can seem a little strange because it seem that we have said nothing in the first sentence regarding ¬Q, soin the second sentence how can we infer anything from it? However, imagine we know that P implies Q, and we saying that Q was false. In this case, if we were to imply that P was true because we know that P implies Q, we also know that Q is true. But Q was false .So we cannot possibly denote that P is true, which means that we ought to imply that P is false (because we are in propositional logic, so P might be either true or false). This argument shows that we may replace the first sentence by the second one, and it is left as aworkout to construct a similar argument for the vice-versa part of this equivalence.
Explain the resources of data structure is used by an operating system to keep track of process information? Explain A process is a program in execution. An operating system
Subtraction 11011-11001 using 2's complement. Ans. 11011 - 11001 = A - B 2's complement of B = 00111 1 1 0 1 1 + 0 0 1 1 1 1 0 0 0 1 0 Ignore carry to get answer as 00010 = 2.
What is the significance Timescale directive? Defines time units and simulation precision (smallest increment). Syntax 'timescale TimeUnit / PrecisionUnit TimeUnit =
write algorithm and draw flowchart for exchange the values of two variables.
Is it possible to decrease clock skew to zero? Describe your answer? Even if there are clock layout strategies (H-tree) which can into theory reduce clock skew to zero by havi
End-user Computing: The growing base of personal computers and local area networks in the end user community are supported. This offers installation services, training and helps de
Q. Explain about Butterfly permutation? Butterfly permutation: This kind of permutation is attained by interchanging the most significant bit in address with least significant
How do you control instructions like branch, cause problems in a pipelined processor? Pipelined processor gives the best throughput for sequenced line instruction. In branch in
MS Access provides a vast range of functions some of them are ? It is used by small business, departments of large corporations, and by amateurs to make applications on their d
types of internal conditioning with explanations and examples
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd