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Proof step 22 from proof validrefs-primarray (previous step)

st[r -- _type] .type = mkarraytype(ty0), is_arraytype(st[r -- _type] .type), ty0 ≤ ty, is_primtype(ty), is_array(str, r, st) ⊦ validrefs(str, r ' + refs0, mkarraytype(ty), st) ↔ r ' + refs0 = jvmref ' ∨ okarray(r, ty, st) ∧ refs0 = [], r = jvmref

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 21:
st[r -- _type] .type = mkarraytype(ty0), is_array(str, r, st), is_primtype(ty), ty0 ≤ ty ⊦ r = jvmref, validrefs(str, r ' + refs0, mkarraytype(ty), st) ↔ r ' + refs0 = jvmref ' ∨ okarray(r, ty, st) ∧ refs0 = []

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_arraytype(mkarraytype(ty))])]]