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Theorem junkrefs-subclass

⊦ is_obj(refs .first, st) ∧ ¬ junkrefs(str, refs, st[refs .first -- _type] .type, st) ∧ refs ≠ [] → ¬ junkrefs(str, refs, mkclasstype(`java.lang.Object' .class), st)

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 7
Used lemmas: junkrefs-is-junk, junkrefs-sametype, junkrefs-null,
Used spec theorems:
- Used simplifier rules:
  - addfuns/is_valid_ref-type
  - typefuns/ref
  - list/references/a
  - list/references/e-01
  - list/references/c
  - list-data/references/elim-list-c