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Proof step 10 from proof validrefs-one (previous step)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
is_valid_ref(str, r, st), st[r -- _type] .type ≤ ty ⊦ r = jvmref, validrefs(str, r ', ty, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]