Editing Truth and Semantics (section)

== <span style="color: #FFFFFF;">Understanding</span> ==
Truth and semantics are understood through '''Conditions''' and '''Levels'''.

'''1. Meaning as Truth (Davidson)''':
How do you "Understand" a sentence you have never heard before?
* Donald Davidson argued that to "Understand" is to "Know when it would be true."
* If I say: "There is a blue elephant in your kitchen," you know what I mean **because** you know "Exactly what would have to happen in the world" for that to be true (you would see a blue elephant).
* Meaning is a "Bridge" between "Sound" and "World-Conditions."

'''2. The "T-Schema" (Tarski)''':
Is truth just "Repeating the sentence"?
* Tarski wanted to "Define" truth without using the word "Truth."
* He said: The sentence "Snow is white" (The Object) is true if, in the world, **snow is white** (The Fact).
* This "Redundancy" is the foundation of "Model Theory"—the math used to check if a computer program is "Correct."

'''3. The "Liar" Problem (Levels)''':
"This sentence is False."
* If it's True, then it's False. If it's False, then it's True.
* Tarski solved this by saying a language "Cannot talk about its own truth."
* To say "Sentence A is true," you must be standing "Outside" the language of A. This "Hierarchy of Languages" prevents the "Loop" of the Liar Paradox from breaking the system.

'''The 'Snow is White' Formula'''': Tarski's most famous example. It sounds simple, but it "Anchored" the abstract world of logic to the physical world of facts. It proved that "Truth" is not a "Mysterious Quality," but a "Relationship" between "Symbols" and "Objects."
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