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Theorem countrefs-lastn-03

⊦ 1 + # refs1 ≠ n ∧ # refs2 = n * m + n → lastn(n, r1 ' + refs2) ≠ r0 ' + refs1

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: multi-field, multi-fieldin, multi-in-other, multi-isarrayref, multi-lengthin, multi-refin, multi-typein,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 2
Used lemmas:
Used spec theorems:
- list-data/references/length-neq
Used simplifier rules:
- list/references/in-17
- list/references/in-append
- list/references/in-14
- list-del/references/lastn-length
- list/references/len
- list/references/len-02
- list/references/a