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6 views

Marking Algorithm to prove satisfiability of Propositional Formulas

I'm looking for an example done on "Marking Algorithm" of Propositional Logic( the algorithm which is used to prove the satisfiability of propositional formulas ). I can't find any on the internet. ...
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19 views

Weighted partial MaxSAT (and MinSAT) with real-valued weights?

Consider the following optimization problem ($\min$-version also of interest): $$ \max_{β\in\{0,1\}^m}\{c'φ(β): ψ(β)=1\} = \max_{\phi\in\{0,1\}^n}\{c'\phi: β\in\{0,1\}^m, \phi=φ(β), ψ(β)=1\},$$ ...
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1answer
46 views

How to give an assignment of boolean values such that this expression is evaluated to true?

Given the expression $E$, is there an assignment of boolean values ($true$ or $false$) that we can give to our variables such that this is evaluated to $true$? $E = (¬x + z + ¬v) · (¬v + w) ·(¬z + ...
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19 views

How to solve statements which satisfies and statements which are valid? [duplicate]

I know i've posted this one time before, but I didn't get a lot of help so i'm trying again since i'm still stuck at this task. I need to decide whether the statements are true or false. F stands for ...
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1answer
54 views

How to find if a valuation satisfies a statement?

I'm working on a task which i'm a bit stuck at. I need to decide whether the statements are true or fale. F stands for the statement logical formulas, and also if the claim is true I need to give a ...
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1answer
519 views

In Satisfiability, what is the difference between the empty clause and the empty set?

The empty clause is a clause containing no literals and by definition is false. c = {} = F What then is the empty set, and why does it evaluate to true? Thanks!