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Theorem junkrefs-one

⊦ junkrefs(str, r ', ty, st) ↔ r ≠ jvmref ∧ (¬ is_valid_ref(str, r, st) ∨ ¬ st[r -- _type] .type ≤ ty)

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: junkref-array, junkref-class, junkref-class-01, junkref-is-junk, junkref-isarray-typeex, junkrefs-newref-01, junkrefs-notin-02, junkrefs-put-notin-butlast, junkrefs-supertype, junkrefs-union-disjoint,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 7
Proof steps: 10
Used lemmas: junkrefs-array, junkrefs-class, junkrefs-is-junk, junkrefs-null,
Used spec theorems:
- addfuns/is-valid-ref-stronger-def
Used simplifier rules:
- list/references/app
- list/references/a