People who are studying CS: how often do you use sentential logic (propositional calculus)/ how useful is it to learn? Recently I have been getting into formal logic and I was just wondering how it is applied to that specific field.
>>7976142
I have used boole algebra to design electronic circuits (Compter Organization and Computer Architecture)
However, I never used propositional calculus directly, I think it is more of a "mathematical thinking" kind of subject.
>>7976756
Besides that, you will use propositional calculus if you are going to program in Prolog.
>>7976142
I've been coding apps for five years and never had to use anything more complicated than a tridimensional array.
>>7976765
So I recommend you study something else.
>>7976765
>muh webdev
>>7976142
It's used in AI the most.
I've seen inference rules used both for defining the type and value of expressions in a programming language. I think Epigram actually uses inference rules in the form of stuff under/over a bar for giving type signatures.
>>7976793
Prolog uses propositional logic as a programming language. Not terribly useful for most applications though.
>>7976802
Yes, I know prolog for being used in AI, I don't know if there are other uses
>>7976142
It's nice to know something about formal logic when you want to prove certain properties of algorithms. Which of course is relevant for every field of CS.
>>7976802
I mean when formally defining a language, not as actual part of the language.
>>7976844
I never had to use propositional logic to formally define a language; guess there's another way that I wasn't taught.
>>7976854
Mainly I see it used in typing rules and defining semantics
