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Proof step 5 from proof validfield-put-statfield-01 (conclusion)

⊦ rk .ref = jvmref ∧ (r ≠ jvmref ∨ rk .key ≠ sk0) → (validfield(str, r, sk0, st[rk, val]) ↔ validfield(str, r, sk0, st))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
rk .ref = jvmref, r ≠ jvmref ∨ rk .key ≠ sk0 ⊦ validfield(str, r, sk0, st[rk, val]) ↔ validfield(str, r, sk0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]