Quantifiers and variables - propositional model, Computer Engineering

Assignment Help:

Quantifiers and Variables - propositional model:

There is one question is arrives that 'What do sentences containing variables mean?' In other way of words, how does a first-order model decide where such a sentence is true or false? Here the first step is to ensure that for the sentence does not contain any free variables, variables that are not bound by associated with a quantifier. So there strictly speaking that a first-order expression is not a sentence unless all the variables are bound there. Moreover, we usually suppose that if a variable is not explicitly bound then really it  is implicitly universally quantified. 

So now we look for the outermost quantifier in our sentence. Whether If this is ∀ X then we consider the truth of the sentence for every value X could take then the outermost quantifier is ?X we require to find just a single possible value of X. Just to make this more formal we can need a concept of substitution.


Related Discussions:- Quantifiers and variables - propositional model

Appropriate problems for ann learning , Appropriate Problems for ANN learni...

Appropriate Problems for ANN learning - artificial intelligence-  As we did for decision trees, it is essential to know when ANNs are the correct representation scheme for the

What are stacks, What are stacks? A stack  is an abstract data type in...

What are stacks? A stack  is an abstract data type in which items are additional to and removed only from one end known as TOP. For example, consider the pile of papers on you

Explain point-to-point message passing, Q. Explain Point-to-point Message P...

Q. Explain Point-to-point Message Passing? In point to point message passing, one process transmits/receives message from/to another process. There are four communication modes

Determine the equivalent hexadecimal form of decimal number, Solve the equa...

Solve the equation 65.535 10 = X 16 Ans. In order to get X, convert the Decimal number 65.535 in its equal Hexadecimal form. So first taking 65 the integer part to convert in i

Illustrate process of swapping system, What does the swapping system do if ...

What does the swapping system do if it identifies the illegal page for swapping? If the disk block descriptor does not have any record of the faulted page, then this causes the

Illustrate when are intermolecular forces the strongest, Q. Illustrate when...

Q. Illustrate when are intermolecular forces the strongest? Answer:- Intermolecular forces dispersion and dipole-dipole and hydrogen bonds. These forces are feeble than ch

Explain conditions under which a deadlock situation arise, What are conditi...

What are conditions under which a deadlock situation may arise? A deadlock situation can arise if the following four conditions hold concurrently in a system:  a. Mutual exc

What is central processing unit, What is Central Processing Unit Centra...

What is Central Processing Unit Central Processing Unit (CPU) performs all the arithmetic and logical calculations in a computer. The CPU is said to be the brain of the compute

Describe the advantages of java servlets over cgi interface, Describe the a...

Describe the advantages of JAVA servlets over CGI interface. The Advantage of Servlets Over "Tradi tional" CGI: Java servlets are extra efficient, easier to utilize more pow

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd