Typing environment
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In type theory a typing environment (or typing context) represents the association between variable names and data types.
More formally an environment is a set or ordered list of pairs , usually written as , where is a variable and its type.
The judgement
- Γ ⊢ e: τ
is read as "e has type τ in context Γ".[1]
In statically typed programming languages these environments are used and maintained by type rules to type check a given program or expression.
See also
References
- ^ "Simply Typed λ-calculus" (PDF).