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Proof step 39 from proof validrefs-delete (previous step)

¬ (r0 ≠ jvmref ∧ (¬ is_valid_ref(str, r0, st -- r) ∨ ¬ (st -- r)[r0 -- _type] .type ≤ ty)), validrefs(str, r0 ' + acc, ty, st -- r), ∀ str, ty, st, r. validrefs(str, acc, ty, st -- r) → validrefs(str, acc, ty, st) ⊦ r0 = jvmref, validrefs(str, r0 ' + acc, ty, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 38:
validrefs(str, r0 ' + acc, ty, st -- r), is_valid_ref(str, r0, st -- r), (st -- r)[r0 -- _type] .type ≤ ty, ∀ str, ty, st, r. validrefs(str, acc, ty, st -- r) → validrefs(str, acc, ty, st) ⊦ r0 = jvmref, validrefs(str, r0 ' + acc, ty, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1])]]