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Proof step 8 from proof validrefs-one (previous step)

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

User applied rule case distinction

And obtained the following new goals

Proof step 5:
is_obj(str, r, st), st[r -- _type] .type ≤ ty ⊦ r = jvmref, validrefs(str, r ', ty, st)
Proof step 7:
is_array(str, r, st), st[r -- _type] .type ≤ ty ⊦ r = jvmref, validrefs(str, r ', ty, st)

Rule argument

[CASEDARG : pos: left 1, ()]

Additional information

[[CONCRETESIMPRULES : ()]]