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# Glossary and Resources | ||
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## Resources | ||
[Model Checking](https://mitpress.ublish.com/ebook/model-checking-2e-preview/7092/ix): Temporal Logics, Automata, SAT, \\( \mu \\)-Calculus, concurrency | ||
[Model Checking](https://mitpress.ublish.com/ebook/model-checking-2e-preview/7092/ix): Temporal Logics, Automata, SAT, $ \mu $-Calculus, concurrency | ||
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# SMT_Solvers | ||
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Unfiltered notes below: | ||
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## 1. A History of Satisfiability | ||
The history of satisfiability is best understood along its logic roots. | ||
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In logic, syntax and semantics are distinct. | ||
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Syntax is associated with proof theory, syntactic derivation, axioms | ||
with a specified grammatical forms, inference rules. | ||
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Semantics deals with model theory, satisfiability with respect to worlds. | ||
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In logic, there are two key terms: validity and consistency. They are interdefinable. | ||
if we make use of $\neg$: | ||
the argument from $ p_1,\dots,p_n $ to $ q $ is valid if and only if the | ||
set $ \set{p_1, \dots, p_n, \neg q} $ is inconsistent. | ||
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In proof theory, validity is called derivability. Consistency is just called consistency. | ||
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Derivability: $ q $ is derivable | ||
from $ p_1, \dots, p_n $ (in symbols, $ p_1, \dots, p_n \vdash q $) | ||
if and only if you can syntactically prove you using inference rules.there is a proof in the axiom system. | ||
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In model theory, validity is just called validity. Consistency is called satisfiability. $ A \vDash p $ means that $ p $ | ||
is true in the structure $ A $. | ||
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Satisfiability, or semantic consistency: $ \set{p_1, \dots, p_n} $ is satisfiable | ||
if and only if for some $ A, A \vDash p_1, \dots, A \vDash p_n $. | ||
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An axiom system is | ||
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## Resources | ||
Handbook of satisfiability |