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Proof step 20 from proof validrefs-primarray (previous step)

r ≠ jvmref, 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 = []

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 19:
st[r -- _type] .type = mkarraytype(ty0), ty0 ≤ ty, is_primtype(ty), is_array(str, r, st) ⊦ r = jvmref, validrefs(str, r ' + refs0, mkarraytype(ty), st) ↔ r ' + refs0 = jvmref ' ∨ okarray(r, ty, st) ∧ refs0 = []

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]