Questions tagged [mu-calculus]
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Why use $\mu$-calculus and not LTL,CTL,CTL*?
It is known that the temporal logics LTL,CTL,CTL* can be translated/embedded into the $\mu$-calculus. In other words, the (modal) $\mu$-calculus subsumes these logics,
(i.e. it is more expressive.)
...
3
votes
1
answer
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Why do we have free variables in mu-calculus?
I'm reading the Model Chekcing book of E. M. Clarke and in the chapter about µ-calculus there is an example formula
$$
f = \mu Z. ((q \mathrel{\mathrm{AND}} Y) \mathrel{\mathrm{OR}} \langle a \rangle ...
3
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0
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CTL and the modal mu-calculus
Is there any literature / results to which fragment of the modal mu-calculus the logic CTL corresponds? I know that in order to tranlsate the until operators of CTL, it suffices to use a single mu-...
2
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1
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Have I got the right understanding of the mu operator?
I have a homework problem that says:
For $g(x,y)=xy-5$ compute $h(x) = \mu y(g(x,y))$ and determine its domain.
I was under the impression that this means the least y such that $g(x,y)=0$, so then $...
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2
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What does least fix point and greatest fix point mean in Safety games
In safety games there are these mathematical notation about greatest fix points and least fix points but I don't get it. How would we describe them plain English without mathematical symbols.
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2
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The minimization operator is an effective operator
Assume $\{f_i^{(n)}\}_{i=0}^\infty$ is a Gödel enumeration of the $\mu$-recursive functions of $n$ arguments, such that the $S^m_n$ theorem and the universal function theorem hold. Denote the set of (...
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1
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Techniques (tools) to convert temporal logic (CTL,CTL* or LTL) to μ-calculus formulae
Suppose one wants to use a μ-calculus model checker, but specify things in temporal logics, which is easier (more intuitive). Is there a technique (even better, a tool) that automatically translates ...
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Intuitive meaning of modal $\mu$-calculus formula
I am solving one of the past exams and I am not certain with my solution to one of the exercises. The exercise is asking to give intuitive meaning to modal $\mu$-calculus formula:
$$ \phi = \mu Z. \...
1
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1
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Using diagonal argument to prove that $H(x) = \mu y T(x,x,y)$ has no total computable extension
Hello everyone just like the title says I want to prove that $H(x) = \mu y T(x,x,y)$ has no total computable extension such that if we had a function $BIG(x)$ that is both total and agrees with $H(x)$ ...
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0
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Using the μ (mu) operator
Problem
I've got this function:
$f(x,y)=(6-3\cdot x)\cdot(y+2)$, with $(x,y)\in\mathbb{N}^2$
Now I have to find $g=\mu f$.
Proposed solution
My solution was to find the smallest $n\in\mathbb{N}$ to ...
0
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1
answer
111
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Why is $\mu$ finite looping?
It is said that the intuitive meaning of $\mu$ is finite looping where as the intuitive meaning of $\nu$ is infinite looping in $\mu$ calculus. I understand this for finite systems, but why is this ...
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Understanding the reason behind the μ (mu) operator [closed]
What is the purpose of the $\mu$ operator?
Is there a real world example?
Is it correct that it can create partial
functions out of total functions and it makes a function $g$ with k
parameters out ...