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

Approaches for development of information systems, Q. Approaches for develo...

Q. Approaches for development of information systems? Numerous approaches are available for development of Information Systems. They are as below: • Model Driven: It put e

Compute the different stages of kohlbergs theory, Problem 1 (a) Identi...

Problem 1 (a) Identify and briefly describe the possible roles of Codes of Ethics (b) Describe why is a code of ethics important to stakeholders. (c) Explain how should

Unix, A friend has promised to log in at a particular time. However, he nee...

A friend has promised to log in at a particular time. However, he needs to be contacted as soon as he logs in. The shell script checks after every minute whether he has logged in o

Sdr, advantages of sdr

advantages of sdr

What is glitch and what are causes of it, What is glitch? What causes this ...

What is glitch? What causes this (describe with waveform)? How to overcome this? The gated clock‘s corresponding timing diagram demonstrates that it implementation can lead to

What is meant by a field, What is meant by a field The consecutive nonw...

What is meant by a field The consecutive nonwhite space characters that define a data item collectively define a field. It is possible  to limit the number of such characters b

How would you kill a process, How would you kill a process? The "kill" ...

How would you kill a process? The "kill" command takes the PID as one argument; this signifies which process to terminate. The PID of a process can be got using "ps" command

What is metropolitan area network, Q. What is Metropolitan Area Network? ...

Q. What is Metropolitan Area Network? Metropolitan Area Network (MAN):  It is privately or public owned communication system that naturally covers a complete city. Speed is abo

Methods for organising the associative memory, There are two methods for or...

There are two methods for organising the associative memory based on bit slices: Bit parallel organisation: In this organisation every bit slices which are not masked off,

General use of cluster computing, Q. General use of cluster computing? ...

Q. General use of cluster computing? A general use of cluster computing is to balance traffic load on high-traffic web sites. In web operation a web page request is transmitted

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