fd3d42ae33
git-subtree-dir: golang-lean git-subtree-mainline:6487c7046fgit-subtree-split:f5f1701922
17 lines
505 B
Text
17 lines
505 B
Text
import GolangLean.PureEval
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import GolangLean.BigStep
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namespace GolangLean
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/-! # Equivalence between evaluators.
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Mirror of octive-lean's `ValueEquiv`. The theorem to prove is:
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`evalExprP fuel env e = some (v, env') ↔ BigStepExpr env e v env'`
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(modulo fuel being large enough)
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This bridge is what lets us *use* the executable evaluator inside proofs:
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once `evalExprP` is shown to compute the same relation as `BigStepExpr`,
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running the interpreter is itself a proof. Stub. -/
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end GolangLean
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