2026-06-23 10:23:44 -05:00
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import Mathlib.Tactic.TypeStar
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2026-06-25 15:39:51 -05:00
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/-!
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Interpretation to a semantic domain.
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This file serves to introduce the double-angle-bracket "denotation"
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notation by prodiving a class instance `Interp`, whose single
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method `interp` is what the double brackets map to. -/
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2026-06-23 10:23:44 -05:00
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namespace Spa
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2026-06-25 15:39:51 -05:00
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/-- A type `α` that implements this class has denotation / meaning
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in the semantic domain `dom`. -/
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2026-06-23 10:23:44 -05:00
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class Interp (α : Type*) (dom : outParam Type*) where
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interp : α → dom
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notation:max (priority := high) "⟦" v "⟧" => Interp.interp v
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end Spa
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