True, False, Other | Non-Classical Logic | Attic Philosophy
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3 سال پیش
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In classical logic, sentences are
In classical logic, sentences are always either true or false (but never both). That rule breaks down in non-classical logic, and things get more interesting! In this video, we look at logics with 3 truth-values: True, False, and some other value, which might be Neither true nor false, for even Both true and false. We'll look at how to understand the logical connectives. In a follow-up video, we'll look at the some different 3-valued logics.
00:00 - Intro
01:28 - The Basic Idea
02:16 - Relational semantics
03:19 - Three-Valued Semantics
04:24 - Truth-Functional Semantics
04:53 - Negation
05:33 - Truth Matrices
06:19 - Conjunction
08:10 - Disjunction
09:04 - Semantic clauses
12:11 - Fuzzy Logic
13:46 - Implication
16:19 - Lukasiewitz matrix
More videos on non-classical logic coming next! If there’s a topic you’d like to see covered, leave me a comment below.
Links:
My academic philosophy page: markjago.net/
My book What Truth Is: bit.ly/JagoTruth
Most of my publications are available freely here: philpapers.org/s/Mark%20Jago
Get in touch on Social media!
Instagram: www.instagram.com/AtticPhilosophy
Twitter: twitter.com/PhilosophyAttic
#logic #philosophy #semantics
3 سال پیش
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