Ewellformed islambda #735
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Ewellformed islambda #735
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mattam82
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Sep 12, 2022
* Constructors as blocks improvement: they always have the right arity * Include "isLambda" for fixpoint bodies in the ewellformed predicate. * Derive an eliminator to reason on the evaluation relation when cstrs_as_blocks = true, preserving well-formedness
mattam82
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Sep 13, 2022
* Constructors as blocks improvement: they always have the right arity * Include "isLambda" for fixpoint bodies in the ewellformed predicate. * Derive an eliminator to reason on the evaluation relation when cstrs_as_blocks = true, preserving well-formedness
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This includes the invariant that fixpoint bodies start with a lambda in the well-formedness predicate on lambda-box terms. This is ensured by typing and maintained by erasure by adding a dummy lambda if the body naturally erases to
tBox. Both malfunction and certicoq need this (recursive bindings must be values).