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Proof step 14 from proof validrefkeynotnull-notnewref (conclusion)

⊦ validrefkeynotnull(str, rk, ty, st) → ¬ newref(st[rk] .refval, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ validrefkeynotnull(str, rk, ty, st) → st[rk] .refval ≠ jvmref
Proof step 13:
validrefkeynotnull(str, rk, ty, st), newref(st[rk] .refval, st) ⊦

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ newref(r, st) → r ≠ jvmref])]]