Propositional truth tables, Computer Engineering

Assignment Help:

Propositional truth tables:

There {X\t} is a substitution that replaces all occurances of variable X with a term representing an object t as: 

  • ∀X. A is true if and only if A.{X\t} for every one t in Δ
  • ?X. A is true if and only if A.{X\t} for at any rate one t in Δ

 

By repeating this for all the quantifiers than we get a set of ground formulae in which we have to check that if the original sentence is true or false. But unfortunately, we don't have specified there that our domain Δ is finite -  like in example we see that it may contain the natural numbers -  but there may be a infinite number of sentences to check for a given model! So there may be also be an infinite number of models. And although we have a proper definition of model hence a proper semantics for first-order logic and we can't rely on having a finite number of models like we did where drawing propositional truth tables.


Related Discussions:- Propositional truth tables

Assessing heuristic searches , Assessing Heuristic Searches: Given a p...

Assessing Heuristic Searches: Given a particular problem you want to build an agent to solve, so there may be more than one way of justifying it as a search problem, more than

Determine the term - artisan software and bridgepoint, Determine the term ...

Determine the term - ARTiSAN Software and  BridgePoint ARTiSAN Software : This provides a variety of UML based CASE tools, which also includes a real time modeling tool.

What is an operating system, What is an operating system? An operating...

What is an operating system? An operating system is system software which provides interface between hardware and user. The operating system gives the means for the proper uti

Explain the accuracy of an ADC, Explain the Accuracy o f an ADC. Ans...

Explain the Accuracy o f an ADC. Ans Accuracy- The accuracy of D to A converter is the difference among actual output voltage and the expected output voltage in D to A c

Mode counter, desing mode level counter starting at 0011 using D flipflop

desing mode level counter starting at 0011 using D flipflop

Performance instrumentation in parallel computer, Performance instrumentati...

Performance instrumentation focuses on how to resourcefully collect information about computation of parallel computer. Method of instrumentation mostly tries to capture informatio

Disk operating system, Q. Disk operating system? The operating system (...

Q. Disk operating system? The operating system (OS) is the first program that should be loaded into the memory of your PC before you can use it for any application. You can st

What are the limitations of mobile devices, What are the limitations of mob...

What are the limitations of mobile devices? For mobile devices we require both PC-integrated applications and specialized mobile services quite than repurposed website content.

Matlab, 33.A juice company manufactures one-gallon bottles of three types o...

33.A juice company manufactures one-gallon bottles of three types of juice blends using orange, pineapple, and mango juice. The blends have the following compositions: 1 gallon or

Signalling connection control part and message transfer part, The Signallin...

The Signalling connection control part (SCCP) and message transfer part (MTP) together are referred to as (A) Signal Switching Points (SSPs) (B)  Signal Transfer Points

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