gen-define-the-principle-of-compositionality-and-give-one-short-3c61

Define the principle of compositionality and give one short worked example.

# Principle of Compositionality **Definition:** The principle of compositionality (also called Frege's principle) states that the meaning of a complex expression is determined by the meanings of its constituent parts and the way they are syntactically combined. In short: **Whole meaning = parts' meanings + composition rules** ## Worked Example **Sentence:** "Black cats sleep" **Breakdown:** - **"black"** = the property of being black - **"cats"** = the set of all cats - **"sleep"** = the property of sleeping **Composition:** 1. "black" + "cats" → the set of cats that are black (adjective-noun combination) 2. "black cats" + "sleep" → the proposition that black cats have the property of sleeping (subject-predicate combination) **Result:** We understand "Black cats sleep" by combining our knowledge of what "black," "cats," and "sleep" mean individually, plus the grammatical rules for how adjectives modify nouns and predicates apply to subjects. This allows us to understand novel sentences we've never encountered before, as long as we know the parts and the rules.