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Proof step 19 from proof validref-nopath-superset (conclusion)

⊦ validrefnotnull(str, r, st[r -- _type] .type, st) ∧ st ⊆ st0 ∧ newref(r1, st) → ¬ path∃(str, r, r1, st0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

[emptyarg]

Additional information

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