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Proof step 27 from proof validrefs-not-in-01 (previous step)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 26:
r ∈ acc, validrefs(str, r0 ' + acc, ty, st), is_valid_ref(str, r0, st), st[r0 -- _type] .type ≤ ty, ∀ r, str, ty, st. r ∈ acc ∧ validrefs(str, acc, ty, st) → r = jvmref ∨ is_valid_ref(str, r, st) ⊦ r0 = jvmref, r = r0, r = jvmref, is_valid_ref(str, r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]