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Proof step 57 from proof validrefs-primarray (conclusion)

⊦ is_primtype(ty) → (validrefs(str, refs, mkarraytype(ty), st) ↔ refs = [] ∨ refs = jvmref ' ∨ okarray(refs .first, ty, st) ∧ refs .rest = [])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 56:
is_primtype(ty) ⊦ validrefs(str, refs, mkarraytype(ty), st) ↔ refs = [] ∨ refs = jvmref ' ∨ okarray(refs .first, ty, st) ∧ refs .rest = []

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]