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

Define the components of a process precedence sequence, Define the componen...

Define the component of a process precedence sequence? Ans. Process name, sequence operator and also concurrency operator components are process precedence sequence.

State the process of development of object oriented analysis, The Process o...

The Process of Development The approach to development can be an iterative one. It involves repeated refinement of the object model. The process needs to be controlled by an a

Marked statement is implemented , Consider the ReadRear Java method (a)...

Consider the ReadRear Java method (a) Illustrate pictures that explain the data structure every time a checkpoint is reached for the problems of sizes one, two, three and four s

Explain loop-invariant code motion, Explain briefly Loop-invariant code ...

Explain briefly Loop-invariant code motion of the commonly used code optimization techniques. Loop-invariant code motion If a quantity is calculated inside a loop duri

Explain the term - instruction execution, Explain the term - Instruction ex...

Explain the term - Instruction execution We  know  that  the  fundamental  function  performed  by  a  computer  is  the  execution  of  program. The program that is to be exec

Eequivalences rules, Eequivalences rules: This conveys a meaning that ...

Eequivalences rules: This conveys a meaning that is actually much simpler so than you would think on first inspection.  Hence we can justify this, by using the following ch

Desirable choice for the partitioning element in quick sort, A desirable ch...

A desirable choice for the partitioning element in quick sort is First element of the list.

Execution of micro-program, The micro-instruction cycle can comprises two b...

The micro-instruction cycle can comprises two basic cycles: the fetch and execute. Here in the fetch cycle address of micro-instruction is produced and this micro-instruction is pu

Enginering mechanics, if 2 forces are equal at an angle alpha between them...

if 2 forces are equal at an angle alpha between them - its resultant R and its direction

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