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Proof step 5 from proof validrefkeynotnull-put-statfield (conclusion)

⊦ rk1 .ref = jvmref ∧ rk ≠ rk1 ∧ validrefkeynotnull(str, rk, ty1, st) → validrefkeynotnull(str, rk, ty1, st[rk1, val])

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ validrefkeynotnull(str, rk, ty, st) ↔ rk ∈ st ∧ validrefvalnotnull(str, st[rk], ty, st)
Proof step 4:
⊦ rk1 .ref = jvmref ∧ rk ≠ rk1 ∧ rk ∈ st ∧ validrefvalnotnull(str, st[rk], ty1, st) → validrefkeynotnull(str, rk, ty1, st[rk1, val])

Rule argument

[crewrite-arg: validrefkeynotnull-def , F , [st, ty, rk, str] → [st, ty1, rk, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, ty1, rk, str)]]