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Theorem validrefs-append-01

⊦ validrefs(str, refs, ty, st) ∧ validrefs(str, refs0, ty0, st) ∧ refs .last = refs0 .first ∧ refs ≠ [] ∧ refs0 ≠ [] → validrefs(str, refs + refs0 .rest, ty, st)

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: validrefs-applast-array, validrefs-applast-array-null, validrefs-applast-class, validrefs-applast-class-null,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 6
Used lemmas: validrefs-append,
Used spec theorems:
- Used simplifier rules:
  - list/references/e-02
  - list-last/references/last-elim
  - list/references/a
  - list/references/e-01
  - list/references/c
  - list-data/references/elim-list-c