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Proof step 35 from proof validrefs-delete (previous step)

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

User applied rule case distinction

And obtained the following new goals

Proof step 21:
is_obj(str, r0, st), st[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, r = r0, validrefs(str, r0 ' + acc, ty, st)
Proof step 34:
is_array(str, r0, st), st[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, r = r0, validrefs(str, r0 ' + acc, ty, st)

Rule argument

[CASEDARG : pos: left 3, ()]

Additional information

[[CONCRETESIMPRULES : ()]]