two-level grammar
C39516
concept
A two-level grammar is a formal grammar system that separates the description of valid symbol sequences into two layers—typically a context-free base level and a more restrictive metalevel—to capture complex syntactic or structural constraints more expressively than a single-level grammar.
All labels observed (1)
| Label | Occurrences |
|---|---|
| two-level grammar canonical | 1 |
Description generation (CDg)
The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.
Instruction
generate a one-sentence description for a given conceptual class. # Response Format Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: two-level grammar
Generated description
A two-level grammar is a formal grammar system that separates the description of valid symbol sequences into two layers—typically a context-free base level and a more restrictive metalevel—to capture complex syntactic or structural constraints more expressively than a single-level grammar.
Instances (1)
| Instance | Via concept surface |
|---|---|
| Van Wijngaarden grammars | — |