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Theorem validrefs-levelsubset

⊦ level⊆(str, str0) ∧ validrefs(str, refs, ty0, st) → validrefs(str0, refs, ty0, st)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 9
Proof steps: 30
Used lemmas: validrefs-class, validrefs-array, validrefs-null-02, validrefs-is-junk, validrefs-empty,
Used spec theorems:
- Used simplifier rules:
  - int-abs/lels-03
  - int-abs/lels-04
  - int-abs/forward-le-01
  - int-abs/forward-le-05
  - int-abs/lels
  - int-abs/lels-01
  - junkrefs/levelsubset-is-array
  - addfuns/is_valid_ref-isarray
  - javavalue/sel-09
  - fieldspec/sel-03
  - javavalue/test-19
  - javavalue/elim-13
  - list/references/e-01
  - list-data/references/elim-list-c
  - junkrefs/levelsubset-is-obj
  - fieldspec/elim
  - addfuns/is_obj-isarray
  - addfuns/is_valid_ref-01
  - list/references/a
  - list/references/c