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Proof step 9 from proof validref-put-array-any (previous step)

∃ i. sk = i ', validref(str, r, ty, st), ¬ is_referencevalue(val) → okval(val, st[r0 -- _type] .type .type), is_referencevalue(val) → validref(str, val .refval, st[r0 -- _type] .type .type, st) ∧ r0 ≠ jvmref ∧ is_arraytype(st[r0 -- _type] .type) ∧ (val .refval = jvmref → is_reftype(st[r0 -- _type] .type .type)) ⊦ validref(str, r, ty, st[r0 -- sk, val])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 8:
validref(str, r, ty, st), ¬ is_referencevalue(val) → okval(val, st[r0 -- _type] .type .type), is_referencevalue(val) → validref(str, val .refval, st[r0 -- _type] .type .type, st) ∧ r0 ≠ jvmref ∧ is_arraytype(st[r0 -- _type] .type) ∧ (val .refval = jvmref → is_reftype(st[r0 -- _type] .type .type)) ⊦ validref(str, r, ty, st[r0 -- i ', val])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]