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Proof step 12 from proof validrefs-put-notin-01 (previous step)

okval(val, fs .type), r -- fs ' ∈ st, okval(st[r -- fs '], fs .type), r ∈ st ⊦ fs ' = _length, fs ' = _type, validrefs(str, r0 ', ty, st[r -- fs ', val]) ↔ r0 = jvmref ∨ r0 ≠ jvmref ∧ is_valid_ref(str, r0, st) ∧ st[r0 -- _type] .type ≤ ty

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 11:
okval(val, fs .type), r -- fs ' ∈ st, okval(st[r -- fs '], fs .type), r ∈ st ⊦ fs ' = _length, fs ' = _type, validrefs(str, r0 ', ty, st[r -- fs ', val]) ↔ r0 = jvmref ∨ is_valid_ref(str, r0, st) ∧ st[r0 -- _type] .type ≤ ty

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]