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Theorem getdims-posints-01

⊦ ¬ posints(getdims(ints)) ↔ false

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: addarrays-at-other, addarrays-at-other-01, addarrays-fieldat, addarrays-fieldin, addarrays-length, addarrays-mode, addarrays-out, addarrays-refin, addarrays-refin-01, addarrays-typein-01, endfinallymode,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 4
Used lemmas: getdims-zero, getdims-rec, getdims-empty,
Used spec theorems:
- Used simplifier rules:
  - valuesfuns/posints-one
  - int-abs/lels
  - valuesfuns/posints-rec
  - int-abs/lels-01
  - int-basic1/ls-01
  - list/intlista/a
  - list/intlista/c
  - valuesfuns/posints-empty